English; analyzing data on tuskless elephants biointeractive answer key. 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 . Knowledge awaits. 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. rev-a-shelf 6942-28-11-52; stride rite sandals baby girl; five spice beef noodle soup 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. Thanks for reading Scientific American. Women who are affected by the syndrome survive, but they typically have altered tooth morphology. 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. keyboard_arrow_up Show footer Analyzing Data on Tuskless Elephants Pre-Video Activity 1. 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 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. Scientists are trying to determine the genes involved in tusk development and how variations in these genes can lead to tusklessness. Thanks for reading Scientific American. Discover world-changing science. !: H3d -:Cg Zf d1 But in males with no other X chromosome to fall back on, that mutation appears to cause death in the womb. 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. This activity guides the analysis of a published scientific figure from a study involving illegal elephant poaching. 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. 6. Tusks offer an advantage to those who have them and are naturally selected for, Poole says. 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. Such a deep genetic understanding of complex evolutionary changes in large free-ranging animals would have been unobtainable just a few years ago.. The story of African elephants is a powerful case study of how science can inform conservation. Among the younger females, who were born after this period of heavy poaching, 33% are tuskless. This web tool provides a quick and easy way of visualizing and analyzing data without advanced technological requirements. This tool can be used to add pause points, questions, and labels to any BioInteractive video. 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. The more killing there was, the more tuskless females you got. 6. This film describes natural selection and adaptation in populations of rock pocket mice living in the American Southwest. Key Concepts. The human immune system is made up of many cells, organs, and tissues. But he found himself sucked into the mystery of tuskless elephants when he watched a YouTube video about the phenomenon. %%EOF 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. This interactive module explores the diversity of viruses based on structure, genome type, host range, transmission mechanism, replication cycles, and vaccine availability. BioInteractive is offering free workshops for high school and undergraduate life and environmental science educators. 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. But the proportion of tuskless elephants has increased in some populations. Howard Hughes Medical Institute Statistical Data Explorer. Scientists . Scientific Explanation of Evolution by Natural Selection. 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. endstream endobj 256 0 obj <. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. After creating an account, educators can save and organize their favorite BioInteractive resources and discover recommendations tailored to their interests. adaptation, claim, evidence, frequency, phenotype, poaching, population, reasoning, selection, selective pressure, variation. Propose a claim supported by scientific evidence to answer a research question. Most immune cells develop from stem cells in the bone marrow. endstream endobj 416 0 obj <. 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. Resume watching the video until This interactive module explores examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. It is important to track how many elephants are left and where they live to help protect them. This interactive, modular lab explores the evolution of the anole lizards in the Caribbean through data collection and analysis. Ordered sequences of BioInteractive resources for teaching a course, unit, or lesson. 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. Data Points are useful resources that use figures from the primary literature and guided sets of supporting questions. Its something I had puzzled over for so long, says Poole, co-founder and scientific director of ElephantVoices, a nonprofit science and conservation organization. Explain how characteristics associated with biological sex may affect athletic performance. It also includes a library of ready-to-use videos with embedded questions. PART 2: Video Activity . Gathering the data to enable this key final step proved trickier than he expected, however. This interactive module explores how different animals elephants, birds, and bats have evolved distinct ways of using sound to communicate. This activity guides the analysis of a published scientific figure from a study that measured species population declines on a global scale. Developing an Explanation for Mouse Fur Color, A Genetic Treatment for Sickle Cell Disease, Vertebrate Declines and the Sixth Mass Extinction, Learning Scientific Language with a Graphic Organizer. 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. After making these observations, Campbell-Staton decided it was time to use a whole-genome analysis to pinpoint the potential genetic factors. Like other places that had undergone intense poaching, Gorongosas female elephants exhibited an abnormally high proportion of tusklessness. Continue reading with a Scientific American subscription. ;X2ELb/6-qRrT3p0=qb3]1#>7}}2D/Q 59E ,;! Working in Gorongosa National Park, Mozambique, Dr. Joyce Poole and colleagues make a striking observation: many female elephants lack tusks. This data-driven activity accompanies the video Selection for Tuskless Elephants. 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. HS-LS4-2, HS-LS4-3, HS-LS4-4, HS-LS4-5; SEP1, SEP5, SEP6, EVO-1.E, EVO-1.G, SYI-2.B, SYI-3.D; SP3, SP4, SP5, SP6, Topic(s): 2.1, 2.6, 9.10 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. Learning Objectives & Practices: ERT-2.A, ERT-2.H, EIN-4.C, SP5, SP6, ELA.RST.9-12.7, ELA.WHST.9-12.1 Answers Biointeractive Hhmi - Effebi.biella.it. 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. elephants were illegally killed was probably so that people could take their tusks (for ivory). In this activity, students work with authentic research data to explore the impact of poaching on African elephants. 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. In this activity, students engage in key science practices that scientists used to figure out ecosystem dynamics in the Serengeti. These declines may be a part of Earths next mass extinction. Most African elephants have tusks, but some about 2% to 6% of females and even fewer males never grow them. 2. 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. Let's Go! Selection for Tuskless Elephants. hb```f``z' B@QKm>%QXP^miq4YtnT50WS'.*^916SqKi"%df%IE400(wt@*06sx9 g! 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. The frequency of tusklessness, the team found, increased from about 18.5 percent before the war to 50.9 percent after. 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. 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. (The first six weeks, as well as the culminating project . The immune system responds to pathogens in two main ways: innate and adaptive immune responses. It seemed simple enoughexcept we drove all day, every day for a week and didnt see a single elephant.. 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