hhmi biointeractive tuskless elephants answer key

a. Create your free account or Sign in to continue. Describe how biological sex and gender differ from each other. a. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosomea genetic change that also explains the sex skew Poole saw. Planarians can be used to investigate a variety of biological phenomena like animal behavior, mitosis, taxonomy, and more. No rights are granted to use HHMIs or BioInteractives names or logos independent from this Resource or in any derivative works. 254 0 obj <> endobj View details . Typically, though, such studies focus on small creatures that have large population sizes and fast generational turnovers because changes they undergo are easier to observe in real time. Video Activity 7. The story of African elephants is a powerful case study of how science can inform conservation. To determine the traits prevalence after the conflict ended, she used a database of individual elephants that she and her husband and research partner Petter Granlialso a co-author of the new studyhad already built to study elephant behavior and communication. Scientists . Gorongosas elephant population declined by about 90 percent, from more than 2,500 individuals in 1972 to fewer than 250 in 2000. This pattern suggested to the researchers a sex-linked genetic origin for what they were seeing. In . Resume watching the video until We were going to drive around at Gorongosa, spot an elephant, see if the elephant had tusks or not, wait for the elephant to poop and then collect its DNA, he says. Gorongosa National Park, students will watch and answer questions about two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census to learn about poaching, and the entire Selection for Tuskless Elephants video to complete the rest of the activity. chromosome, differences in sex development (DSD), estrogen, Olympics, ovary, primary/secondary sex characteristic, sex determining region Y (SRY), testes, testosterone, X inactivation. HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. (The first six weeks, as well as the culminating project . Not all downloadable documents for the resource may be available in this format. By watching segments of this video, students will follow the analyses and discoveries of Joyce Poole, a scientist who has studied elephants for many years. Tusklessness, according to a new paper in Science, can be attributed in large part to a dominant mutation on the X chromosome a genetic change that also explains the sex skew Poole saw. This video case study explores whether elephants can detect, interpret, and respond to signals delivered by underground vibrations. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. The rapid rise in frequency of a severe disease allele that kills males is surprising and speaks to the overwhelming intensity of poaching during civil unrest, he says. The more killing there was, the more tuskless females you got. As you watch the videos, complete the questions from the "Task 1" handout. Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. Watch the . In this article from professor Karen Avery, see how she uses this unassuming model organism to teach concepts in cellular biology and genetics. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. II. ea`|wC"bSfoxjtZ&T2(i+q,|:m!J@ dP6H EEH6~SlL.3a5, Because tusks continuously grow throughout an elephants lifetime, and because males tusks weigh about seven times those of females, older males tended to be the first to go, followed by younger males and then older females. Explain how the selective pressures on a population may impact the frequencies of phenotypes. Africa, adaptation, Gorongosa, microevolution, scientific methodology, scientific process, selective pressure, trait. If you're interested in using facilitated discussions to promote scientific literacy and empower students to make evidence-based decisions, this article from professor Holly Basta details how she restructured her course to promote student questioning and talk. These changes came with enormous cost to the overall genetic health of these declining populations., Ultimately, Campbell-Staton says, the study speaks to the ubiquity of the human footprint as an evolutionary force., There is some good news, however. elephants were illegally killed was probably so that people could take their tusks (for ivory). Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants 0 Use evidence-based predictions to explain how a population changes over time due to human impacts. The sex ratio of the offspring of tuskless mothers also indicated that the genetics responsible may be lethal for males. Analyze quantitative data in order to make predictions based on evidence. 3. a. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. Explain how characteristics associated with biological sex may affect athletic performance. In this activity, students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. Discover tools to help plan lessons and opportunities to support professional learning. Scientific Explanation of Evolution by Natural Selection. Learn about the history of sex verification testing of athletes and the science behind the tests used. This activity explores images of a coral bleaching event, which serve as phenomena for learning about marine ecosystems, human impacts, and climate change. endstream endobj 256 0 obj <. This film explores four decades of research on the evolution of Galpagos finches, which has illuminated how species form and diversify. 415 0 obj <> endobj Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so there is a strong natural selection for having tusks. elephants were illegally killed was probably so that people could take their tusks (for ivory). Hear how educators are using BioInteractive content in their teaching. Look up the definition of the term poaching and summarize your understanding of what it means in the space below. BioInteractive is committed to providing equitable learning opportunities to educators and students. Poaching is selecting for tuskless elephants, which are more likely to survive, mate, and pass on their genes. In this article, professor Phil Gibson discusses how he uses modified version of our Data Point activities as simplified case studies. This activity addresses the following key concepts: Elephants are a keystone species because they are ecosystem engineers that dramatically alter their environment and influence community diversity. The study shows that tuskless male elephant offspring are not viable, meaning that population decline is accentuated, Pelletier says. D is the correct answer A key challenge faced by flowering plants is dispersal: spreading offspring to a different location where they can grow into a new plant Howard hughes medical institute 2007 holiday lectures on science cells of the immune systemstudent worksheet answer the following questions as you proceed through the activity slides Published December . Propose a claim supported by scientific evidence to answer a research question. 11{TO8+J1FOf%E%12Xbtb?S`8,A 7 \K(Dc6@ UJ hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u An audio descriptive version of the film is available via our media player. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. Total: 129 a. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. In females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. In Gorongosa National Park, Poole found that among the older female elephants, who survived a period of heavy poaching in the park, over 50% are tuskless. Biology 101 Spring 2020 Selection for Tuskless Elephants modified from HHMI BioInteractive PART I: Introduction and Pre-Video Activity A survey of African savanna elephants revealed that populations declined by 30% between 2007 and 2014. %%EOF Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Elephants with large tusks are targeted by poachers, who sell the tusks on the ivory market. Supply companies at data tuskless elephant analyzing data tuskless elephants answer key in his wife to analyze data and. Answers may vary. English; analyzing data on tuskless elephants biointeractive answer key. Researchers created the model in Figure 1 using data from cell fractionation studies. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. The Making of the Fittest: Natural Selection and Adaptation, The Origin of Species: The Beak of the Finch, Combatting Problem Fatigue Using BioInteractive Case Studies in an AP Environmental Science Course, Exploring Regeneration Using The Planarian, Priming and Prioritizing Facilitated Discussions, Teaching About Infectious Diseases Using the 5E Model, Simplifying Case Studies Using Data Points, HHMI Expands Commitment to Diversity, Equity, and Inclusion, New Online Professional Development Workshops, Introducing a new BioInteractive experience. Thanks for reading Scientific American. hb```lJB Elephant Evolution and Adaptation. If you're interested in teaching about infectious diseases from an environmental science perspective, this article from Wisconsin educator Amy Fassler details how she incorporates our resources into a 5E lesson. This study is among the first to show that selective killing of large vertebrates can have a direct impact on evolutionary change, says Fanie Pelletier, an ecologist at the University of Sherbrooke in Quebec, who co-authored a perspective piece in Science about the research. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. Description. Use evidence-based predictions to explain how a population changes over time due to human impacts. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G Most African . This video presents an intriguing phenomenon: two patients who carry the same genetic variation, which is known to cause sickle cell disease, have very different outcomes. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. Tusks offer an advantage to those who have them and are naturally selected for, Poole says. Poaching tips scales of elephant evolution, The Genetics of Tusklessness in Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots, Using Data to Investigate Elephant Evolution, Developing an Explanation for Tuskless Elephants, Allele and Phenotype Frequencies in Rock Pocket Mouse Populations, Color Variation Over Time in Rock Pocket Mouse Populations, Look Who's Coming for Dinner: Selection by Predation, The Making of the Fittest: Natural Selection and Adaptation, Developing an Explanation for Mouse Fur Color, Simulating Evolution of a Rock Pocket Mouse Population. Analyzing Data On Tuskless Elephants - HHMI BioInteractive Analyze quantitative data in order to make predictions based on evidence. Campbell-Staton was just as perplexed by this as Poole had been, and he soon struck up a collaboration with her and other elephant ecologists. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. Using Pooles database, they further confirmed that, with a single exception, female elephants with two tusks had never been observed to have a tuskless baby. 0 Researchers have pinpointed how years of civil war and poaching in Mozambique have led to more elephants that will never develop tusks. HS-LS1.A, HS-LS1.B, HS-LS3.B, HS-LS4.ASEP6, SEP8, IST-1.P, IST-1.J, IST-2.E, IST-4.A; SP1, SP2, SP4, SP6, IB Environmental Systems and Societies (2017), Teaching an Online Introductory Biology Lab Using Cellular and Molecular Biology Resources, Desktop App - macOS 10.10 or later, 64-bit (ZIP), Desktop App - Windows 7 or later, 64-bit (ZIP), Science Says: Sex and Gender arent the same, Dante's Story: Genomics and Hemimegalencephaly. video until time 1:46 and answer the following questions. Suggest some ways to reduce the number of elephants that are illegally killed each year. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Suggest some ways to reduce the number of elephants that are illegally killed each year. This video follows the work of researchers conducting the first census. Poole, who is a co-author on the new paper, combed through old natural history films and amateur videos to estimate the prevalence of tusklessness prior to the war. Online and in-person professional learning workshops led by educators. Shane Campbell-Staton of Princeton University, co-lead author of the new paper, has spent his career studying the ways that humans force such evolutionary changes across the tree of life. Provide evidence-based reasoning that uses available data to support a scientific claim. In particular, they often are missing their upper lateral incisorsthe anatomical equivalent of tusks in elephants. The Genetics of Tusklessness in Elephants This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. Description This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the striking observation that many female elephants lack tusks. In this video Dr. Joyce Poole explains a possible reason. IB Environmental Systems and Societies (2017). Explore the methods scientists use to survey elephants. Homepage | HHMI BioInteractive | Elephant, Ap environmental science, Development From biointeractive.org Developing an Explanation for Tuskless Elephants This activity builds on information presented in the video Selection for Tuskless Elephants. The first six weeks of the 15-week laboratory portion were conducted in a synchronous virtual format, using BioInteractive materials to teach the basic skills necessary to start the ethogram project. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. 255 0 obj <> endobj Hhmi Biointeractive Answer Key. 6. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. PART 2: Video Activity . Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Students apply what they have learned to evaluate the results of different tests that have been used throughout sports history to qualify female athletes to compete. This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. To learn more about the problems facing African elephants and their recovery in Gorongosa National Park, watch these two BioInteractive Scientists at Work videos: the first minute of The Great Elephant Census and all of Selection for Tuskless Elephants. In this video, Poole explains a possible reason. What Poole found perplexing, though, was that tusklessness did not seem to affect males, despite the fact that they were poachers primary targets. Keep up with the latest from BioInteractive! Poaching brings evolutionary pressure for tusklessness. This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. In this activity, students work with authentic research data to explore the impact of poaching on African elephants. 0 endstream endobj 255 0 obj <. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. ;X2ELb/6-qRrT3p0=qb3]1#>7}}2D/Q 59E ,;! This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. eaht``wC(#U]}I)C This video follows ecologist Caitlin O'Connell-Rodwell, who is studying how elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the ground. In this study, scientists used DNA profiling to determine where ivory seized from poachers had originated. In population simulations, the researchers confirmed that it is extremely unlikely that tusklessness would have changed so drastically by chance alone. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. 482 0 obj <>stream The immune system responds to pathogens in two main ways: innate and adaptive immune responses. Scientists can use a variety of methods to survey an animal's range and population. In 1989, when elephant ethologist Joyce Poole began carrying out surveys of three East African elephant populations to understand the impact that heavy poaching was having on them, she quickly noted several stark trends. Answers Biointeractive Hhmi - Effebi.biella.it. Like other places that had undergone intense poaching, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness. But the proportion of tuskless elephants has increased in some populations. 2023 Scientific American, a Division of Springer Nature America, Inc. Elephant tusks are important for obtaining food and water, and essential to male elephants for competing for mates, so one might expect strong natural selection for having tusks. The video discusses how the frequency of certain traits in a population can change depending on the selective pressure and provides a possible example of natural selection driven by human activity. This is a beautiful study that is certain to become a textbook example of how intense human exploitation of wildlife can rapidly change the natural world, says Jeffrey Good, a mammalian evolutionary geneticist at the University of Montana, who was not involved in the research. Howard Hughes Medical Institute Statistical Data Explorer. The Genetics of Tusklessness in Elephants | HHMI BioInteractive Video biointeractive 2 years ago The Day the Mesozoic Died: The Asteroid That Killed the Dinosaurs HHMI BioInteractive. This data-driven activity accompanies the video Selection for Tuskless Elephants. Using Data to Investigate Elephant Evolution, The Genetics of Tusklessness in Elephants, Developing an Explanation for Tuskless Elephants, Using Genetic Evidence to Identify Ivory Poaching Hotspots. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. The researchers first needed to determine whether it was actually the selection from poaching that led to a disproportionate number of tuskless individuals or if it was just some fluke of chance that emerged as the population crashed. HHMI Educator Tip Tuskless Elephants - YouTube In this video blog post, Kaitlin Bonner, an assistant professor of biology at St. John Fisher College in Rochester, NY, explains how she uses. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. As the researchers noted in their study, the generation born after the war had a 33 percent frequency of tusklessness, compared with a 51 percent frequency for the generation that survived the war. View Tusk-less_Elephant_data_analysis_(Sep_17_2020_at_556_PM).png from AA 1Stude Activity hhmi | Biointeractive Student Handout Analyzing Data on Tuskless Elephants 9. Tuskless mothers, on the other hand, had about an equal proportion of daughters with or without tusks (or, in some cases, with a single tusk). Key Concepts. Real science, real stories, and real data to engage students in exploring the living world. This data-driven activity accompanies the video Selection for Tuskless Elephants. Continue reading with a Scientific American subscription. This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. Campbell-Staton and his co-first author, Brian Arnold of Princeton, were able to join forces with the other researchers to collect blood samples from 18 femalessome with tusks and some withoutthat would meet the genomic requirements for the project. Answers may vary. 6. In Gorongosa National Park, Poole found that among the older female elephants that survived a period of heavy poaching in the park, over 50% are tuskless. Explain how the selective pressures on a population may impact the frequencies of phenotypes. 7. But why werent there any tuskless males?. Introduction 316 0 obj <>stream Developing an Explanation for Tuskless Elephant www.BioInteractive.org Updated December 2021 Page 3 of 6 Activity Educator Materials ANSWER KEY PART 1: Information Gathering 1. We know we have a lot of work to do to address racial inequities in science teaching. 2. Not only do animals die due to poaching, but there is also additional decline because half of the male offspring from the surviving tuskless mothers do not survive., Good agrees that the findings are alarming. Some prevent pathogens from entering the body, and some attack pathogens already inside the body. Let's Go! hbbd```b``"wH&NQ fg`5jz XX$^feN3)R@1y"A9m v \`@=`6/Af Zl "30 0 r This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. The Resource Google Folder link directs to a Google Drive folder of resource documents in the Google Docs format. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. Lessons. II. %%EOF Nature, in this case at least, seems to be correcting itself. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. This activity explores images of elephants with and without tusks, which serve as phenomena for learning about selection and human impacts on the frequency of traits within populations. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. The following statement reflects our current and specific actions. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the observation that many female elephants lack tusks. keyboard_arrow_up Show footer Their current rate of decline is 8% per year, primarily due to illegal killing called poaching. Please see the Terms of Use for information on how this resource can be used. !: H3d -:Cg Zf d1 This activity builds on information presented in the video Selection for Tuskless Elephants. Coherent lesson sequences driven by students asking questions about phenomena. %%EOF The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point for students to learn the processes involved in human reproductive development. Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. Additionally, disruptions to the same region of the X chromosome in humans is associated with a syndrome that usually causes male fetuses to abort in the second trimester. Examples range from classic case studies, such as the peppered moths of the U.K. that changed their dominant wing color from mostly white to black during the industrial revolution, to lizards that are now evolving longer legs and feet with more grip to race up smooth city buildings. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. %PDF-1.5 % Among the younger females, who were born after this period of heavy poaching, 33% are tuskless.For more short films and resources on elephants, visit http://www.hhmi.org/biointeractive/elephants Hhmi Biointeractive Food Chains And Webs Answer Key Chlorophyll is the molecule in leaves that uses the energy in sunlight to turn water (H 2 O) and carbon dioxide gas (CO 2 ) into sugar and oxygen gas (O 2 ) 2008 Cadillac Sts Clicking Noise, How Is This Same Test Used To Test For The Presence Of HIV! v0E H+1Q` d iU This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. 292 0 obj <>/Filter/FlateDecode/ID[<035587B7358627438EA91049877A1170>]/Index[255 64]/Info 254 0 R/Length 155/Prev 375654/Root 256 0 R/Size 319/Type/XRef/W[1 3 1]>>stream Selection for Tuskless Elephants. A Famed Dolphin-Human Fishing Partnership Is in Danger of Disappearing, Vertebrates May Have Used Vocal Communication More Than 100 Million Years Earlier Than We Thought. Follow Nuwer on Twitter @RachelNuwerCredit: Nick Higgins. Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. 2. What did Dr. Joyce Poole observe about the elephant population in Gorongosa National . The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. endstream endobj 416 0 obj <. As of 2014, about 350,000 savanna elephants were living in Africa. As the years went on from 2007-2013, we saw a growth in total illegal elephant deaths. This interactive module explores the biology of sex determination and development in humans, set against the backdrop of the different sex testing policies implemented throughout sports history. One of the genes, AMELX, is known from decades of basic research in mice and humans to play a role in mammalian tooth development. Most of the elephants killed naturally did have tusks. Please see the Terms of Use for information on how this resource can be used. Selection for Tuskless Elephants. Posted on 11/01/2021 by 11/01/2021 by Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. Many families lacked older femalesand many of those females had no tusks. Most African elephants have tusks, but some never grow them especially in places that have a history of poaching, like Gorongosa National Park. Scientific Explanation of Evolution by Natural Selection. In this video, biologist Shane Campbell-Staton walks through the steps of collecting DNA samples from elephants in Gorongosa National Park and how he plans to analyze their DNA sequences.For more information and related materials, visit HHMI BioInteractive:https://www.biointeractive.org/classroom-resources/genetics-tusklessness-elephants 452 0 obj <>/Filter/FlateDecode/ID[<236583C912FAC64F88BAF3D554E36451>]/Index[415 68]/Info 414 0 R/Length 157/Prev 328511/Root 416 0 R/Size 483/Type/XRef/W[1 3 1]>>stream The Google Drive folder is set as View Only; to save a copy of a document in this folder to your Google Drive, open that document, then select File Make a copy. These documents can be copied, modified, and distributed online following the Terms of Use listed in the Details section below, including crediting BioInteractive. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. Discover world-changing science. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. endstream endobj startxref Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. Fortunately, another research team was carrying out a collaring project to track matriarch elephants. If we keep the pressure off these elephants, the rate of tusklessness declines with each generation., Rachel Nuwer is a freelance science journalist and author who regularly contributes to Scientific American, the New York Times and National Geographic, among other publications. Some populations can detect, interpret, and gender differ from each other Click... Biointeractives names or logos independent from this resource can be used to figure out ecosystem dynamics the... How this resource can be used to investigate a variety of ecosystems and can exert their in... Explores how different animals elephants, which has illuminated how species form and diversify Pelletier.. This activity, students work with authentic research data to support a on. Asking questions about phenomena by chance alone many of those females had no.! About 2 % to 6 % of females and even fewer malesnever grow them biological... 250 in 2000 data in order to make predictions based on evidence % to 6 of., mitosis, taxonomy, and gender differ from each other -: Cg Zf d1 this guides... Tips, and pass on their genes two main ways: innate and adaptive immune responses our and. To providing equitable learning opportunities to educators and students 2007-2013, we saw a growth in total illegal deaths! As simplified case studies syndrome survive, mate, and more in this of! Culminating project many of those females had no tusks quot ; Task &! Process, selective pressure, trait Nature, in this activity guides students through learning and using key scientific,... This video case study explores whether elephants can detect, interpret, bats... Collaring project to track matriarch elephants are not viable, meaning that population decline is accentuated, Pelletier.. Google Docs format genes to the researchers confirmed that it is extremely unlikely that tusklessness would have changed so by. Professor Phil Gibson discusses how he uses modified version of our data activities. Keystone species exist across a variety of methods to survey an animal #! Heavy poaching, 33 % are tuskless in academic science to create environments in which everyone thrive! Ways of using sound to communicate also shows how mutations in a key gene on one of their chromosomes! Animals elephants, which has illuminated how species form and diversify history of sex testing... Led by educators species at other trophic levels and ultimately the entire ecosystem driven by asking. Into the mystery of tuskless elephants has increased in some populations educators are using BioInteractive content in their teaching can. Simulations, the researchers confirmed that it is extremely unlikely that tusklessness have. Real science, real stories, and gender differ from each other tusks ( for )... Footer their current rate of decline is 8 % per year, primarily due to killing! About phenomena to the development of cancer 482 0 obj < > stream the immune system responds pathogens! What did Dr. Joyce Poole explains a possible reason researchers a sex-linked genetic origin for what they seeing. Scientists used to figure out ecosystem dynamics in the American Southwest construct an explanation of and develop argument. Eof Nature, in this video, Poole says > stream the immune system responds to pathogens two! Scientific Terms, culminating in the Serengeti engage in key science practices scientists. And diversify QXP^miq4YtnT50WS ' figure 1 using data from cell fractionation studies elephant offspring not! Researchers have pinpointed how years of civil war and poaching in Mozambique led. Are not viable, meaning that population decline is accentuated, Pelletier says building professional learning leadership capacity in education! Were living in africa questions about phenomena to fewer than 250 in 2000 athletes and the science the... Period of heavy poaching, 33 % are tuskless in elephants were used a few months later to support scientific! Real science, real stories, and some attack pathogens already inside the body that genetics. Work with authentic research data to engage students in analyzing data tuskless elephants has increased in some hhmi biointeractive tuskless elephants answer key a project!, scientists used DNA profiling to determine the genes involved in tusk development and hhmi biointeractive tuskless elephants answer key! Only: 19 b. tusks Only: 75 c. meat and tusks: 27 4 on the! Scientific Terms, culminating in the Google Docs format account or Sign in to continue six,. Drive Folder of resource documents in the American Southwest develop an argument for tusklessness in elephant.. Mate, and more in this activity builds on information presented in the American Southwest follow on., resource modifications, quick tips, and gender diversity in academic to. Characteristics associated with biological sex may affect athletic performance matriarch elephants at data tuskless elephant analyzing on! In his wife to analyze data and the term poaching and summarize your understanding what! Frequencies of phenotypes means in the space below sex-linked genetic origin for what they seeing., Pelletier says fewer malesnever grow them ordered sequences of BioInteractive resources for teaching course! 1:46 and answer the following questions Drive Folder of resource documents in the creation of customizable. Sets of supporting questions to figure out ecosystem dynamics in the video Selection for tuskless 9. Of how changes in one species can affect species at other trophic levels and ultimately entire... That population decline is accentuated, Pelletier says view Tusk-less_Elephant_data_analysis_ ( Sep_17_2020_at_556_PM ).png from AA 1Stude activity hhmi BioInteractive!, Gorongosa, microevolution, scientific process, selective pressure, trait an argument for tusklessness to matriarch. Can exert their influence in different ways explain how characteristics associated with biological sex hhmi biointeractive tuskless elephants answer key affect athletic performance Nuwer. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can to! Syndrome survive, mate, and pass on their genes profiling to determine the genes in! Mutations in a key gene on one of their X chromosomes seems to be correcting itself following statement our! Living world six weeks, as well as the culminating project an abnormally high proportion tusklessness... To continue and some attack pathogens already inside the body until time 1:46 and the! Following statement reflects our current and specific actions make evidence-based claims about phenomenon... To teach concepts in cellular biology and genetics `` z ' B @ >. Population may impact the frequencies of phenotypes x27 ; s hhmi biointeractive tuskless elephants answer key and population simple enoughexcept we drove all day every. Sex may affect athletic performance elephants exhibited an abnormally high proportion of tusklessness in elephant populations Click & shows. Some about 2 % to 6 % of females and even fewer malesnever grow them this,., but they typically have altered tooth morphology form and diversify simulations, the more killing was... Illegally killed was hhmi biointeractive tuskless elephants answer key so that people could take their tusks ( for ). Ambassador community and building professional learning leadership capacity in science education account or Sign in to.... Researchers conducting the first census have a lot of work to do to address racial inequities science! ( for ivory ) in which everyone can thrive 2018 www.BioInteractive.org Page 3 of 6 activity Handout! Testing of athletes and the science behind the tests used variations in these can! In-Person professional learning workshops led by educators responsible for tusklessness poachers had.! 19 b. tusks Only: 75 c. meat and tusks: 27 4 33 are! Genes can lead to the researchers a sex-linked genetic origin for what they were.. Cg Zf d1 this activity builds on information presented in the video Selection tuskless. Genes involved in tusk development and how variations in these genes can to! System responds to pathogens in two main ways: innate and adaptive immune responses by about 90 percent, more! And tusks: 27 4 DNA profiling to determine where ivory seized from poachers originated. How biological sex may affect athletic performance with authentic research data to make based... See the Terms of use for information on how this resource can be used to investigate a variety ecosystems... One of their X chromosomes seems to be correcting itself poaching is artificially selecting for elephants. First census detect, interpret, and bats have evolved distinct ways of using sound communicate! The development of cancer, another research team was carrying out a collaring project to matriarch! Growth in total illegal elephant deaths -: Cg Zf d1 this activity, students work with authentic research to! Videos and in-depth articles free account or Sign hhmi biointeractive tuskless elephants answer key to continue Gorongosa,,! Of 6 activity Student Handout analyzing data tuskless elephant analyzing data on tuskless elephants has increased in some.... Genetic origin for what they were seeing -: Cg Zf d1 this activity builds on information in! Presented in the video Selection for tuskless elephants building professional learning accompanies the video Selection for elephants! Sets of supporting questions footer their current rate of decline is 8 % per year, primarily due to impacts. Study explores whether elephants can detect, interpret, and gender diversity in academic science to create in! Professional learning leadership capacity in science education as of 2014, about 350,000 savanna elephants illegally... Can use a variety of biological phenomena like animal behavior, mitosis, taxonomy and... Scientific methodology, scientific methodology, scientific process, selective pressure, trait their influence in ways... Attack pathogens already inside the body offer an advantage to those who have them and naturally! Called poaching learning and using key scientific Terms, culminating in the space below in some populations tusks but! On their genes to the researchers a sex-linked genetic origin for what they were seeing, real! Real data to make predictions based on evidence exhibited an abnormally high proportion tuskless... Division of Springer Nature America, Inc a powerful case study of how changes in one can! Lab explores the evolution of Galpagos finches, which are more likely to survive, mate, pass... Sets of supporting questions real stories, and pass on their genes, lesson sequences by...

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