hhmi biointeractive tuskless elephants answer key

Scientific Explanation of Evolution by Natural Selection. biointeractive 231K subscribers Subscribe 1.3K Share 130K views 5 years ago Elephants can communicate over long distances using low-frequency sounds that travel both in the air and through the. Discover tools to help plan lessons and opportunities to support professional learning. video until time 1:46 and answer the following questions. Articles that connect current events to BioInteractive resources. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. Why Do Some People with the Sickle Cell Genotype Not Have Symptoms? Tusks offer an advantage to those who have them and are naturally selected for, Poole says. This activity guides students through learning and using key scientific terms, culminating in the creation of a customizable diagram. One type of evidence they use is genetic data. The more killing there was, the more tuskless females you got. 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. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. The human immune system is made up of many cells, organs, and tissues. 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. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. 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. Natural Selection Published October 2018 www.BioInteractive.org Page 3 of 6 Activity Student Handout Video Activity 7. 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). To prevent his AP Environmental Science students from having "problem fatigue," Florida educator Scott Sowell focuses on how environmental solutions are developed, justified, implemented, and evaluated. Nature, in this case at least, seems to be correcting itself. 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. Analyzing Data on Tuskless Elephants. 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. PART 2: Video Activity . HHMI is investing in increasing racial, ethnic, and gender diversity in academic science to create environments in which everyone can thrive. The story of African elephants is a powerful case study of how science can inform conservation. The Resource Google Folder link directs to a Google Drive folder of resource documents in the Google Docs format. 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. Watch the Selection for Tuskless Elephants video until time 1:46 and answer the following questions. Thanks for reading Scientific American. What Poole found perplexing, though, was that tusklessness did not seem to affect males, despite the fact that they were poachers primary targets. a. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. 415 0 obj <> endobj Use evidence-based predictions to explain how a population changes over time due to human impacts. 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. 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. The added information provided at pause points within the animation How We Get Our Skin Color allows for a richer exploration of the topic of human skin structure and function. Describe how mutations in a variety of genes can affect the development of internal and external sex characteristics. 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. 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 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. 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. hbbd```b``"wH&NQ fg`5jz XX$^feN3)R@1y"A9m v \`@=`6/Af Zl "30 0 r Let's Go! Posted on 11/01/2021 by 11/01/2021 by Keep up with the latest from BioInteractive! Poaching is artificially selecting for tuskless elephants who can better survive, mate, and pass on their genes to the next generation. In particular, they often are missing their upper lateral incisorsthe anatomical equivalent of tusks in elephants. Gorongosas elephant population declined by about 90 percent, from more than 2,500 individuals in 1972 to fewer than 250 in 2000. In this inquiry-based activity, students engage in science practices to figure out why some people with a genetic condition that usually leads to sickle cell disease do not have disease symptoms. Use evidence-based predictions to explain how a population changes over time due to human impacts. %PDF-1.6 % As poaching in Gorongosa has been stamped out through sustained conservation efforts, the number of baby elephants born tuskless has begun to decrease. 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. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. a. v0E H+1Q` d Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Continue reading with a Scientific American subscription. 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. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! This interactive video explores how scientists identify which bat populations are infected with Nipah virus and could transmit the virus to humans. hbbd```b``"WH&. lz`f1,f u d Vi 2D7e@l( XDrG;".|`10H-v9Pl=0 u View details . Africa, adaptation, Gorongosa, microevolution, scientific methodology, scientific process, selective pressure, trait. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. 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. The following statement reflects our current and specific actions. Determine whether scientific results confirm or contradict a hypothesis. Introduction Describe how biological sex and gender differ from each other. 11{TO8+J1FOf%E%12Xbtb?S`8,A 7 \K(Dc6@ UJ But the proportion of tuskless elephants has increased in some populations. 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. These declines may be a part of Earths next mass extinction. This has left a notable gap in the literature that the new paper helps to fill. But why werent there any tuskless males?. Real science, real stories, and real data to engage students in exploring the living world. Discover implementation ideas, lesson sequences, resource modifications, quick tips, and more in this collection of videos and in-depth articles. 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. Learn about the history of sex verification testing of athletes and the science behind the tests used. One of the genes, AMELX, is known from decades of basic research in mice and humans to play a role in mammalian tooth development. In this video, Poole explains a possible reason. Hear how experienced science educators are using BioInteractive resources with their students. Students use scientific evidence and reasoning to construct an explanation of and develop an argument for tusklessness in elephant populations. 6. This activity guides the analysis of a published scientific figure from a study involving illegal elephant poaching. 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. 7. An audio descriptive version of the film is available via our media player. 3. a. 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. 2. Many families lacked older femalesand many of those females had no tusks. Provide evidence-based reasoning that uses available data to support a scientific claim. Total: 129 a. Resume watching the video until Elephants with large tusks are targeted by poachers who sell the tusks on the ivory market. It engages students in analyzing data to make evidence-based claims about the occurrence of tusklessness in elephant populations. Pooles observationswhich were used a few months later to support a ban on international ivory tradewere alarming, but they mostly made sense. hhmi biointeractive tuskless elephants answer key About; Location; Menu; FAQ; Contacts Meat Only: 19 b. Tusks Only: 75 c. Meat and Tusks: 27 4. In females, mutations in a key gene on one of their X chromosomes seems to be responsible for tusklessness. Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. For context, this course consisted of a three-credit lecture and a one-credit lab. Selection for Tuskless Elephants. Description. 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. 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. Genetics Evolution Scientific Skills & Literacy Scientists at Work High School General High School AP/IB College Selection for Tuskless Elephants. Fortunately, another research team was carrying out a collaring project to track matriarch elephants. 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. Analyzing Data on Tuskless Elephants Pre-Video Activity 1. II. This video follows scientists working in Gorongosa National Park as they try to determine the genes responsible for tusk development in elephants. endstream endobj 256 0 obj <. Poaching is selecting for tuskless elephants, which are more likely to survive, mate, and pass on their genes. 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. The Click & Learn uses ongoing debates about the eligibility of certain female athletes to participate in women's events as an entry point . Answers may vary. Using those samples, they identified candidate regions in the genome that, when mutated, seemed to explain tusklessness and its apparent male lethality. Answers may vary. This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. 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. As you watch the videos, complete the questions from the "Task 1" handout. 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. Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. Tuskless females, they found, had survived at a rate that was about five times higher than that of their tusked counterparts during the conflict. AQ` n& 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. 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. But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. Explore our digital archive back to 1845, including articles by more than 150 Nobel Prize winners. 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. 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. 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. 6. Scientific Explanation of Evolution by Natural Selection. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. Watch the . This Click & Learn shows that keystone species exist across a variety of ecosystems and can exert their influence in different ways. 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. Anatomy & Physiology Scientific Skills & Literacy Click & Learn High School General High School AP/IB College Selection for Tuskless Elephants 482 0 obj <>stream This tool can be used to add pause points, questions, and labels to any BioInteractive video. pe*X|Xem&5*d X;d3^"kNIc rH+d ``s2AJn#*d9X;DAge`0?k G 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. Most African elephants have tusks, but someabout 2 to 6% of females and even fewer malesnever grow them. Elephants were not an obvious choice for Campbell-Staton, who has mostly focused on lizards until now. This video follows Joyce Poole and other scientists working in Gorongosa National Park, Mozambique, who made the observation that many female elephants lack tusks. endstream endobj 255 0 obj <. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. Elephant Evolution and Adaptation. This data-driven activity accompanies the video Selection for Tuskless Elephants. The accompanying worksheet guides students exploration. 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. %%EOF A new professional development academy focused on growing the HHMI BioInteractive Ambassador community and building professional learning leadership capacity in science education. Hhmi Biointeractive Answer Key. Please see the Terms of Use for information on how this resource can be used. It also made sense that tusklessnessa trait naturally found in a minority of the animals in Africawas apparently being artificially selected for because poachers had no reason to shoot such an animal.

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