This animation shows how influenza viruses can combine their genetic information to produce new viral strains. When two different strains of a virus infect the same host cell, their genetic material can mix and produce a new, recombinant strain. The animation illustrates an example of this process using the influenza virus.Jan 8, 2024 ... Are you an educator in the biosciences? HHMI BioInteractive offers many free resources, workshops and a dynamic educators community ...HHMI Biointeractive; Supporting Information Summary. This tool can be used to turn any BioInteractive video into an “interactive video” that includes pause points, questions, and labels. Educators can use the tool to create an interactive video, then share a link to that video with students. The tool also contains a library of interactive ...Oct 27, 2022 · This interactive, modular lab explores the tools that doctors use to examine and diagnose patients with heart conditions. In this lab, students collect and interpret data using various tools and tests for detecting heart conditions. The lab includes examples of medical exams involving auscultation (listening with a stethoscope), an ... This interactive module allows students to collect and analyze data from a virtual river to construct biomass and energy pyramids. In this Click & Learn, students explore trophic relationships in an aquatic ecosystem. First, they measure the biomass of algae and estimate the number of fish it could support. After collecting data to compare …Materials. Download Transcript (PDF) 197 KB. Energy Flow through Ecosystems | This Click & Learn traces the flow of energy from the Sun all the way to cells within organisms. The embedded questions and …The lab is divided into two sections: In Leech Dissection, you will observe a procedure that isolates part of the leech's nervous system to make the neurons accessible for electrodes. In Probe & Identify, you will place electrodes in different neurons to explore their electrical responses to touch stimuli. You will also use fluorescent dye to ...SARS‑CoV‑2 is a virus that, starting in 2020, has caused the largest global pandemic in recent history. The disease caused by this virus, called COVID‑19, has affected millions of people worldwide. Watch these animations to learn about the biology of SARS‑CoV‑2, including how it infects and replicates in human cells, how it evolves ... Identifying Patterns in Observations. This activity challenges students to identify observations that Darwin and Wallace made during their travels, as shown in ...HHMI Model Builder App. Choose a BioInteractive Model; All of these models are in a Self-check state. She also notes that many of BioInteractive's resources align to NGSS standards. How Did Dinosaurs Regulate Their Body Temperatures | This activity extends concepts covered in the film The Origin of Birds. Students analyze and interpret data from a scientific paper to explore thermoregulation in living and extinct animals, including …This video follows the work of scientists conducting the first census of African savanna elephants in over 40 years and the methods they are using to obtain accurate, up-to-date numbers across the continent. African elephants are threatened by habitat loss and poaching related to the ivory trade. Conservation groups estimate that as many as 100 ...This tutorial describes how RNA interference was discovered, how it works, and potential applications to treating disease. Scientists first described the process of RNA interference (RNAi), the silencing of gene expression by short double-stranded RNA molecules, in plants and worms. The process was then shown to occur in many animals.The Eukaryotic Cell Cycle and Cancer. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of …Apr 11, 2018 · This interactive module explores how CRISPR-Cas9 technology works and the many ways in which scientists are using it in their research. Since it was first described in 2012, CRISPR-Cas9 (often shortened to “CRISPR”) has generated much interest and excitement. This Click & Learn allows students to explore and learn about a biotechnology tool ... Description. This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. Our human ancestors in Africa likely had dark skin, which is produced by an abundance of the pigment eumelanin in skin cells.Description. This video describes the research of Manuel Leal, who is studying territorial lizards to understand how they navigate the dense forests of Puerto Rico to find their way to their home trees. Anole lizards are highly territorial and typically stick close to their home tree.Sickle cell disease (also known as sickle cell anemia) is caused by a mutation in the protein hemoglobin. The animation illustrates how the mutated hemoglobin proteins can change the shape of red blood cells and ultimately reduce blood flow through the body. The animation also explores the mutation behind the disease: a single …Jul 26, 2013 ... Jul 26, 2013 - Howard Hughes Medical Institute's Biointeractive: Resources for science teachers and students, searchable by topic & resource ...The correct answer is darker skin. Chimpanzees have light skin under all their fur. The common ancestor we share with chimpanzees probably had lighter skin, like other primates. Genetic evidence shows that dark skin evolved in the human lineage about 1.2 million years ago, as our ancestors became less hairy.Materials. Download Transcript (PDF) 197 KB. Energy Flow through Ecosystems | This Click & Learn traces the flow of energy from the Sun all the way to cells within organisms. The embedded questions and …Jun 11, 2021 · Li Yao, HHMI Laura Bonetta, HHMI . Reviewers. Nadeene Riddick, HHMI Alice Lu, Yale University, CT Yexin Yang, Yale University, CT . Writing and Editing. Holly Basta, Rocky Mountain College, MT Laura Bonetta, HHMI Mary Colvard, Cobleskill-Richmondville High School (retired) Susan Dodge Esther Shyu, HHMI . Art Direction. Li Yao, HHMI. UI/UX ... Exploring Keystone Species. Meet the animal influencers that play an oversize — and often surprising — role in shaping our world. Explore the Map.Probe and Identify Neurons. This dyed cell image shows a thick branch extending from right to left across the image. About a dozen short, thin branches branch off the thick branch towards the top. Extending below and almost perpendicular to the thick branch is a solid small bulb on the left and two thick branches on the right. This dyed cell ...This animation shows how the proton gradient across the mitochondrial membrane powers the ATP synthase enzyme to make ATP. It is the fifth of six animations about cellular respiration. These animations bring to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.The Eukaryotic Cell Cycle and Cancer. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of …Use this interactive module to connect to an online citizen science platform for identifying animals in photos collected by trail cameras in Gorongosa ...9.3K 834K views 8 years ago Narrated by anthropologist Nina Jablonski, this engaging animation shows how human skin cells produce the pigment melanin, which …Description. This activity allows students to collect and analyze data on the evolution of coat color in rock pocket mouse populations living on differently colored substrates. Students analyze data from images of rock pocket mouse populations in different settings and over time. They then order those images based on the data and …In 1950, biochemist Erwin Chargaff published a paper stating that in the DNA of any given species, the ratio of adenine to thymine is equal, as is the ratio of cytosine to guanine. This set of rules became known as Chargaff's ratio, and it was an important clue for solving the structure of DNA. Depending on students’ background, it may be ...Learn biology with engaging videos from HHMI BioInteractive and HHMI BioInteractive, a new project that reimagines the original Crash Course Biology series. Explore fundamental topics for general high school and AP-level biology courses, from cells to ecology, with current scientific advances, humor, and accessibility. SARS‑CoV‑2 is a virus that, starting in 2020, has caused the largest global pandemic in recent history. The disease caused by this virus, called COVID‑19, has affected millions of people worldwide. Watch these animations to learn about the biology of SARS‑CoV‑2, including how it infects and replicates in human cells, how it evolves ...The Howard Hughes Medical Institute (HHMI) is an independent science philanthropy that invests in biomedical scientists and science educators to advance both human health and our fundamental understanding of biology. The Institute makes long-term investments in people, not just projects, because we believe in the power of individuals to make ... Description. This film explores the epic voyages of Darwin and Wallace that led each to independently propose the natural origin of species and formulate the theory of evolution by natural selection. Up until the early 1800s, most people, scientists included, believed that every species was specially created by God in a form that never changed.Genetic Origin of Variation in Human Skin Color. This activity guides the analysis of a published scientific figure from a study that investigated a gene ...Bacterial Identification Virtual Lab | HHMI's BioInteractive. This virtual lab will familiarize you with the science and techniques used to identify different types of bacteria based on their DNA sequences.Aug 28, 2020 ... Biology of SARS-CoV-2 | This four-part animation series explores the biology of the virus SARS-CoV-2, which has caused a global pandemic of ...The correct answer is darker skin. Chimpanzees have light skin under all their fur. The common ancestor we share with chimpanzees probably had lighter skin, like other primates. Genetic evidence shows that dark skin evolved in the human lineage about 1.2 million years ago, as our ancestors became less hairy. DNA and fossil evidence has revealed that six million to seven million years ago, the human lineage split from the one that eventually gave rise to modern chimpanzees ( Pan troglodytes) and bonobos ( Pan paniscus ). Modern humans have evolved to have large brains and move around on two legs; chimpanzees and bonobos have smaller …This interactive module explores key human impacts on the environment and how they have affected Earth’s landscape, ocean, atmosphere, and biodiversity. Human activities are reshaping our planet in profound ways. The changes that have occurred in the last 50 to 200 years have led scientists to propose a new geologic epoch, called the ...HIV is a retrovirus that infects a type of immune system cell called a helper T cell. As shown in the animation, HIV binds to receptors on its host cell’s surface and fuses with the cell membrane to deposit its genetic material and viral proteins into the cell. One viral protein, the enzyme reverse transcriptase, converts HIV’s RNA genome ...Description. This animated short video celebrates the early 20th-century German astronomer and atmospheric scientist Alfred Wegener, who first proposed that continents once formed a single landmass and had drifted apart. Alfred Wegener proposed the idea of continental drift to explain why continents' shapes fit together like pieces of a …Sep 14, 2018 ... Understanding Global Change | This interactive module allows students and educators to build models that explain how the Earth system works.Description. This activity explores the concepts and research presented in the short film The Origin of Species: The Making of a Theory, which documents the epic voyages of naturalists Charles Darwin and Alfred Wallace. Until the early 1800s, most people, scientists included, believed that every species was specially created by God in …This activity explores conservation biology topics presented in the short film The Guide: A Biologist in Gorongosa. This film tells the story of Tonga Torcida, a young man who discovers his passion for science in the newly revitalized Gorongosa National Park in Mozambique. Growing up near Gorongosa National Park in Mozambique, Tonga …Bacterial Identification Virtual Lab | HHMI's BioInteractive. This virtual lab will familiarize you with the science and techniques used to identify different types of bacteria based on their DNA sequences. Jun 1, 2023 ... This video follows germplasm bank coordinator Cristian Zavala Espinosa and geneticist Sarah Hearne, who are part of the global effort to ...HHMI BioInteractive logo. compact logo file for HHMI BioInteractive. Leave a Comment Cancel reply. Your email address will not be published. Required fields ...Description. This activity explores the evidence that differences in human skin color are adaptations to varying intensity of UV light, as discussed in the short film The Biology of Skin Color. In this film, anthropologist Nina Jablonski walks through the evidence that the different shades of human skin color are evolutionary adaptations to the ...The Great Elephant Census. This video follows the work of scientists conducting the first census of African savanna elephants in over 40 years and the methods they are using to obtain accurate, up-to-date numbers across the continent. Ecology. Environmental Science. Scientists at Work.Modern humans have lived on Earth for only the past 200,000 years—not even a blink of an eye in the history of a planet that is about 4.6 billion years old. Scientists have discovered a rich fossil record of animal …HHMI Biointeractive; Supporting Information Summary. This tool can be used to turn any BioInteractive video into an “interactive video” that includes pause points, questions, and labels. Educators can use the …Feb 5, 2007 · HIV is a retrovirus that infects a type of immune system cell called a helper T cell. As shown in the animation, HIV binds to receptors on its host cell’s surface and fuses with the cell membrane to deposit its genetic material and viral proteins into the cell. One viral protein, the enzyme reverse transcriptase, converts HIV’s RNA genome ... Description. This video explores the evolution of a stickleback fish population over tens of thousands of years, based on fossil data. These fossils come from a quarry site in Nevada that used to be a freshwater lake about 10 million years ago. By studying the fossils from different rock layers, scientists can follow the evolution of the lake ...Sep 3, 2021 · This interactive module explores the environmental factors and species involved in five major mass extinctions. Extinction is a normal part of the evolutionary process. But during five periods in Earth’s history, extinction rates greatly exceeded normal levels. This Click & Learn allows students to compare these five major mass extinction ... Feb 5, 2003 · DNA is copied into RNA in a process called genetic transcription. The process starts with a molecule unzipping the DNA. The molecule then copies one of the two strands of DNA into a strand of RNA. This animation brings the process to life, showing three-dimensional representations of the molecules involved. Depending on students’ backgrounds ... This four-part animation series explores the biology of the virus SARS-CoV-2, which has caused a global pandemic of the disease COVID-19. SARS-CoV-2 is part of a family of viruses called coronaviruses. The first animation, Infection, describes the structure of coronaviruses like SARS-CoV-2 and how they infect humans and replicate inside cells.Sep 3, 2021 · The Eukaryotic Cell Cycle and Cancer | This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of cancer. HHMI BioInteractive is a series of short films and animations that bring the latest science stories to the classroom. Learn about biology, genetics, ecology, infectious diseases, natural selection, and more from the top scientists in their fields. Sep 13, 2016 · Trophic cascades refer to impacts that reach beyond adjacent trophic levels. This Click & Learn first walks students through a classic trophic cascade triggered by the loss of sea otters from a kelp forest ecosystem. Students then test their understanding of trophic cascades in four other case studies, where they predict the relationships among ... Jul 2, 2018 · This interactive module allows students to collect and analyze data from a virtual river to construct biomass and energy pyramids. In this Click & Learn, students explore trophic relationships in an aquatic ecosystem. First, they measure the biomass of algae and estimate the number of fish it could support. After collecting data to compare with ... Photosynthesis. Almost all life on Earth is solar-powered. Plants, algae, and some bacteria capture light energy from the sun and convert it to chemical energy in a series of reactions called photosynthesis. Photosynthesis is a process that nourishes almost the entire living world. Start. { { about.title }} Nov 18, 2013 · Description. This interactive module allows students to explore concepts related to speciation by identifying which birds belong to one of two finch species. The 13 species of finches that live in the Galápagos Islands evolved from a single common ancestor within the past 3 million years. Although these species may seem similar, they generally ... Description. This animated short video illustrates the life of Alfred Russel Wallace, who independently formulated the theory of evolution by natural selection at the same time as Charles Darwin. The video uses animated paper puppets and narration by experts in the field to tell A. R. Wallace’s story, from his early days growing up in England ...In 1958, Meselson and Stahl published the results of a pulse-chase experiment to determine how cells replicate their DNA. Students will first read about how the experiment was conducted and describe the predicted results based on three possible models of DNA replication. They then evaluate the actual experimental results.Learn biology with engaging videos from HHMI BioInteractive and HHMI BioInteractive, a new project that reimagines the original Crash Course Biology series. Explore fundamental topics for general high school and AP-level biology courses, from cells to ecology, with current scientific advances, humor, and accessibility. Jun 10, 2019 ... From Ants to Grizzlies: A General Rule for Saving Biodiversity | HHMI BioInteractive Video · Comments42.DNA replication starts with the separation of the two DNA strands by the enzyme helicase. The two strands are referred to as the 3' and 5' strands based on the direction by which the component nucleotides are joined. The 3' DNA strand is also known as the leading strand; DNA polymerase copies the leading strand to produce a …Description. This video explores how the kidneys filter blood to remove wastes and excess fluid from the body, maintaining a healthy balance of water and salts in the blood. Physician Richard Lifton explains that as fluids (mostly water) from blood move through the kidney, almost all of the water, along with salts and nutrients the body needs ...A. A type of pesticide that uses toxins extracted from fungi to kill pests. B. A type of pesticide that kills fungi and bacteria. C. A type of pesticide that makes plants resistant to fungal pathogens. D. A type of pesticide that kills fungi or inhibits their …Explore: Access a library of ready-to-use interactive videos created by BioInteractive. Create: Create your own interactive video by adding labels, text boxes, and questions …Rock pocket mice can have either light-colored or dark-colored fur. As shown in the animation, mice that blend in with their surroundings are harder for owls and other predators to see. The dark-colored mouse is more vulnerable to predators in light-colored environments, such as sandy deserts. The light-colored mouse is more vulnerable in dark ...ATP Synthesis | HHMI BioInteractive Video biointeractive 241K subscribers Subscribe Subscribed 320 Share 36K views 3 years ago Cellular Respiration This …HHMI Biointeractive; Supporting Information Summary. This tool can be used to turn any BioInteractive video into an “interactive video” that includes pause points, questions, and labels. Educators can use the tool to create an interactive video, then share a link to that video with students. The tool also contains a library of interactive ...Evolution of Ant-Mimicking Beetles. This activity guides the analysis of a published scientific figure from a study that explored the evolutionary origins of parasitic beetles that mimic army ants. Anatomy & Physiology. Evolution. Science Practices.This interactive module uses the central dogma as a model for exploring how modern molecular biology technologies can be used to treat different genetic conditions. The Click & Learn describes different …Evolution At Warp Speed. This activity explores an image of the MEGA-Plate experiment, which serves as a phenomenon for learning about antibiotic resistance and ...Description. Leading evolution educator Ken Miller discusses the controversy surrounding the teaching of evolution, presents compelling evidence for evolution and reasons why "intelligent design" is not scientific. The presentation also features Dr. Miller's responses to questions from a live audience of high school students.Dec 22, 2020 · Description. This interactive simulation allows students to explore two classic mathematical models that describe how populations change over time: the exponential and logistic growth models. The exponential growth model describes how a population changes if its growth is unlimited. This model can be applied to populations that are small and/or ... Description. This animation provides an overview of some basic concepts from plate tectonics, a fundamental theory in earth science. As shown in the animation, heat inside Earth sets up a convection current that drives the motion of tectonic plates. This can lead to the separation of plates and subduction of the mantle, ultimately causing ...Jun 11, 2021 · Li Yao, HHMI Laura Bonetta, HHMI . Reviewers. Nadeene Riddick, HHMI Alice Lu, Yale University, CT Yexin Yang, Yale University, CT . Writing and Editing. Holly Basta, Rocky Mountain College, MT Laura Bonetta, HHMI Mary Colvard, Cobleskill-Richmondville High School (retired) Susan Dodge Esther Shyu, HHMI . Art Direction. Li Yao, HHMI. UI/UX ... This worksheet is designed for the Interactive Activity on Trophic Cascades at HHMI Biointeractive . Students learn how the loss or addition of a species, ...Leech Dissection: Step 2. The anesthetized leech is pinned through the dorsal -side up on a dissection tray. The pins are placed through the leech's anterior and posterior suckers to stretch its body out.Jun 1, 2023 ... This video follows germplasm bank coordinator Cristian Zavala Espinosa and geneticist Sarah Hearne, who are part of the global effort to ...This activity guides the analysis of a published scientific figure from a study that investigated evolutionary changes in seed-eating finches after a drought. In 1976, seeds on the Galápagos island of Daphne Major were diverse and plentiful. A drought in 1977, however, reduced seed availability. The figure in this study shows the distribution ...Overview of the Experiment. Through the following steps, you will explore how the leech's nervous system responds to different kinds of touch stimuli: Insert an electrode into a single neuron. Monitor the neuron's electrical response as you stimulate the skin with different tools. Inject the neuron with a fluorescent dye and observe its anatomy.ATP Synthesis | HHMI BioInteractive Video biointeractive 241K subscribers Subscribe Subscribed 320 Share 36K views 3 years ago Cellular Respiration This …
HHMI BioInteractive has a wide variety of classroom resources on topics in Anatomy & Physiology where students explore interactive content, data from scientific .... Minecraft survival mods download
4535 Followers, 101 Following, 725 Posts - See Instagram photos and videos from HHMI BioInteractive (@biointeractive)Professional Development. High-quality science teaching is essential to the health of our society and planet. BioInteractive is committed to empowering educators through free, evidence-based professional learning and development. We invest in the professional development of high school and undergraduate educators to promote scholarly teaching ...Oct 27, 2022 · This interactive, modular lab explores the tools that doctors use to examine and diagnose patients with heart conditions. In this lab, students collect and interpret data using various tools and tests for detecting heart conditions. The lab includes examples of medical exams involving auscultation (listening with a stethoscope), an ... Description. This interactive, modular lab explores how stickleback fish and fossil specimens are used to study evolutionary processes, with an emphasis on data collection and analysis. In this lab, students learn and apply techniques for analyzing the forms and structures of organisms — in particular, the pelvic structures of the threespine ...Trophic cascades refer to impacts that reach beyond adjacent trophic levels. This Click & Learn first walks students through a classic trophic cascade triggered by the loss of sea otters from a kelp forest ecosystem. Students then test their understanding of trophic cascades in four other case studies, where they predict the relationships among ...Description. In this activity, students extend the concepts covered in the short film The Biology of Skin Color through the application of models and mathematical thinking to explain how genomic variation and human ancestry can explain differences in skin color, a polygenic trait. Humans living in different parts of the world have different ...Photosynthesis. Almost all life on Earth is solar-powered. Plants, algae, and some bacteria capture light energy from the sun and convert it to chemical energy in a series of reactions called photosynthesis. Photosynthesis is a process that nourishes almost the entire living world. Start. { { about.title }} Biology document from Westwood High School, 5 pages, 9/8/22, 10:36 PM Report: Bumblebee Case Study: HHMI BioInteractive Bumblebee Case Study Report Emilio ...Evolution can happen relatively quickly. In freshwater North American stickleback populations, the loss or reduction of pelvic spines has evolved within the past 10,000 years. Moreover, genetic data from living organisms can be used to estimate when evolutionary changes occurred—even if they were millions of years ago.Jul 12, 2021 ... This animation shows how glycolysis converts glucose into pyruvate through a series of enzyme reactions. It is the first of six animations ...Description. This activity explores the evidence that differences in human skin color are adaptations to varying intensity of UV light, as discussed in the short film The Biology of Skin Color. In this film, anthropologist Nina Jablonski walks through the evidence that the different shades of human skin color are evolutionary adaptations to the ...Explain your answer. ... Having the brain in the gut is crucial as it aids in digestion, sensing food, making reflexes against lousy food, and also ... ... Having ...Biomolecules on the Menu. You need food to build your cells and fuel your activities. How does the food you eat provide the energy you need? Take a bite and find out!Biology document from Westwood High School, 5 pages, 9/8/22, 10:36 PM Report: Bumblebee Case Study: HHMI BioInteractive Bumblebee Case Study Report Emilio ...The Eukaryotic Cell Cycle and Cancer. This interactive module explores the phases, checkpoints, and protein regulators of the cell cycle. The module also shows how mutations in genes that encode cell cycle regulators can lead to the development of …Influenza A virus. Part of the Orthomyxoviridae family, which also includes other types of influenza viruses. ~100-nm enveloped particles with a spherical or oblong capsid. Segmented (–)ssRNA genome of ~13,500 bp, consisting of eight segments. Infects birds and mammals including humans and pigs.She also notes that many of BioInteractive's resources align to NGSS standards. How Did Dinosaurs Regulate Their Body Temperatures | This activity extends concepts covered in the film The Origin of Birds. Students analyze and interpret data from a scientific paper to explore thermoregulation in living and extinct animals, including …Genetic Origin of Variation in Human Skin Color. This activity guides the analysis of a published scientific figure from a study that investigated a gene ....
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How to draw a fox | Developed for high school and higher education educators, HHMI BioInteractive films motivate and inspire learning, engage students in the process of science, and instill …Description. This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. Our human ancestors in Africa likely had dark skin, which is produced by an abundance of the pigment eumelanin in skin cells.Feb 27, 2020 ... Biologist Shane Campbell-Staton studies how deer mice living on mountaintops stay warm and active. In this video, Campbell-Staton teams up ......
After the love is gone | SARS‑CoV‑2 is a virus that, starting in 2020, has caused the largest global pandemic in recent history. The disease caused by this virus, called COVID‑19, has affected millions of people worldwide. Watch these animations to learn about the biology of SARS‑CoV‑2, including how it infects and replicates in human cells, how it evolves ...DNA replication starts with the separation of the two DNA strands by the enzyme helicase. The two strands are referred to as the 3' and 5' strands based on the direction by which the component nucleotides are joined. The 3' DNA strand is also known as the leading strand; DNA polymerase copies the leading strand to produce a …...
1 8 in decimal | This interactive module explores key events in the record of life on Earth, which stretches over three billion years. In this Click & Learn, students visit different times in Earth’s history to learn what life was like at that time, based on scientific evidence. Such evidence ranges from chemical signatures in rocks and ancient biological ...The ribosome is a molecular factory that translates the genetic information in messenger RNA (mRNA) into a string of amino acids (a polypeptide chain) that becomes a protein. The ribosome assembles around mRNA. Inside the ribosome, the nucleotide sequence of the mRNA is read three nucleotides at a time by transfer RNA (tRNA) …Carbon naturally cycles between the atmosphere, land, and ocean. The animation follows one common path of carbon through different forms and locations. As shown, carbon can enter the atmosphere as carbon dioxide from volcanic eruptions. Carbon dioxide can be removed from the atmosphere by dissolving in water to form carbonic …...
How many times | Feb 28, 2009 · Taxonomy is a discipline in science concerned with grouping species by common traits. In this Click & Learn, students explore some of the principles of taxonomy by grouping seashells based on their shapes, structures, and other characteristics. Students examine photos of 20 different shells. Clicking on each image opens a short description and ... HHMI BioInteractive Ambassadors are expert high school and undergraduate educators who work closely with BioInteractive to promote and support evidence-based teaching practices, drive change in science education, and elevate the professional and scholarly profile of science teaching. Educators who are interested in becoming an Ambassador are ... ...
How to play soccer | May 14, 2020 · Description. This film explores the hypothesis that different tones of skin color in humans arose as adaptations to the intensity of ultraviolet radiation in different parts of the world. Our human ancestors in Africa likely had dark skin, which is produced by an abundance of the pigment eumelanin in skin cells. Oct 27, 2022 · This interactive, modular lab explores the techniques used to identify different types of bacteria based on their DNA sequences. In this lab, students prepare and analyze a virtual bacterial DNA sample. In the process, they learn about several common molecular biology methods, including DNA extraction, PCR, gel electrophoresis, and DNA ... The discovery of Archaeopteryx in a quarry in Germany in the early 1860s provided the first clue that birds descended from reptiles. But what kind of reptile? In the last 40 years, scientists have discovered that birds descended from a group of carnivorous dinosaurs called theropods. By following this trail of discovery, the film illustrates ......
Download zales | The purple sea star was one of the first keystone species identified by scientists. It is a top predator that keeps the number of species in tide pools relatively stable. Range map of the purple sea star. A healthy population of purple sea stars. In the mid-1900s, ecologists wanted to understand what controls the population sizes of organisms.hhmi BioInteractive. Cytoplasm Close Window The cytoplasm is a gel-like substance made mostly of water that fills the interior of cells. Organelles and proteins inside a cell are suspended within the cytoplasm. Billions of chemical reactions occur in the cytoplasm. Nucleus Close Window The nucleus is a membrane-bound organelle that is …The Immune System Click & Learn Educator Materials - HHMI BioInteractiveThis PDF document provides an overview of the immune system and its components, as well as tips and resources for teaching this topic using the interactive module and the student worksheet. Learn how to guide your students through the immune response, the roles of B and T cells, and the effects of vaccines. ...