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 ... DNA replication involves an enzyme called helicase that unwinds the double-stranded DNA. Other enzymes then copy each of the two strands. One strand is copied continuously. The other strand is copied in sections. The end result is two double-stranded DNA molecules. This animation brings the process to life, showing three-dimensional ...This section simulates a real neurophysiological experiment that explores the leech's nervous system. You may want to review background on the Neuron, Resting Potential, Action Potential, and Voltage Display before starting the simulation.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.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 ...Electrical impulses travel from neuron to neuron to transfer information. When an electrical impulse reaches the end of a neuron, it triggers the opening of channels that release calcium ions. The increase in calcium triggers the release of neurotransmitter molecules into the synapse. The neurotransmitter activates receptors on a second target ...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 ...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 ...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.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 ...Jun 16, 2022 · 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 (multiple-choice, true/false, and free-text) to a BioInteractive video of your choice. You will need a BioInteractive account to use this feature. QUBES Hub - The Power of Biology, Math, and Community.Dec 20, 2016 ... BiomeViewer | This interactive module explores biomes, climate, biodiversity, and human impacts around the globe and at different times.Description. This tutorial describes the structure and function of the p53 protein, how its activity is regulated in cells, and how mutant versions of p53 can lead to cancer. The Click & Learn presents different types of genes that, when mutated, contribute to cancer, including oncogenes, tumor suppressor genes, and DNA repair genes.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 ... 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 ...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 …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 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.Description. High-speed video imaging reveals the two main components of a sneeze in colorful detail: a shower of larger droplets whose trajectories, shown in green, can extend up to 2 meters from the person sneezing (yellow), and a cloud made of a mixture of smaller droplets suspended in moist, warm gas (red). This second component is ...All viruses contain genetic material, called the viral genome, that encodes one or more proteins.Viral genomes vary in their type of nucleic acid (RNA or DNA) and their number of nucleic acid strands (written as ss for single-stranded and ds for double-stranded).. In addition, RNA genomes vary in the sense of their strands, which is the direction in which …Transmission is the passing of a virus from one host to another. The mechanism by which a virus is transmitted depends on several things, including which organisms the virus is able to infect, which types of cells in those organisms the virus can infect, and how the virus is released from an organism (for example, through sneeze droplets or bodily fluids).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 ...Winogradsky columns consist of sediment and water added to a clear container. They may also contain sources of carbon and sulfur. Naturally occurring microbes establish geochemical gradients inside the column based on their metabolic strategies. For example, microbes in the surface layer of the sediment carry out aerobic decomposition, …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 …Description. This multipart activity is designed to give students a firm understanding of genetic profiling using short tandem repeats (STRs), which is a process used by forensic labs around the world. In Part 1 of this activity, students learn the basics of DNA profiling, including the structure and inheritance of STRs.Jan 14, 2014 · Description. This activity explores the concepts and research presented in the short film The Origin of Species: The Beak of the Finch, which documents the main findings from four decades of investigations on the evolution of the Galápagos finches. Evolutionary biologists Rosemary and Peter Grant spent four decades tracking changes in body ... This section simulates a real neurophysiological experiment that explores the leech's nervous system. You may want to review background on the Neuron, Resting Potential, Action Potential, and Voltage Display before starting the simulation.Jul 26, 2013 ... Jul 26, 2013 - Howard Hughes Medical Institute's Biointeractive: Resources for science teachers and students, searchable by topic & resource ...An interactive map showing the different keystone species and their ranges across the globe. Supporting Information. HHMI BioInteractive. Earth is home to many diverse habitats, each with a distinctive collection of plants and animals. But not every species has an equal impact on the others around them. Sometimes, the presence or absence of a ...HHMI BioInteractive provides free online resources for teaching and learning biology, such as interactive modules, videos, activities, and films. Explore topics ranging from genetics and evolution to ecology and biochemistry with real science, real stories, and real data. Identifying Patterns in Observations. This activity challenges students to identify observations that Darwin and Wallace made during their travels, as shown in ...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’ …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. 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 interactive, modular lab explores the techniques used to make transgenic flies and demonstrates how these flies can be used to study gene expression. Scientists use transgenic organisms, which …Jul 26, 2013 ... Jul 26, 2013 - Howard Hughes Medical Institute's Biointeractive: Resources for science teachers and students, searchable by topic & resource ...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 ...Mimicry is an evolved resemblance between an organism (the mimic) and another entity (the model), which can be a nonliving object or an unrelated species. This image shows a moth with wing patterns that resemble flies feeding on bird droppings. This unappetizing appearance, combined with the moth’s unpleasant smell, keeps away …Sep 14, 2018 · Curriculum Connections. Understanding Global Change | This interactive module allows students and educators to build models that explain how the Earth system works. The Click & Learn can be used to show how Earth is affected by human activities and natural phenomena. 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 ...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 ...Description. This animation zooms into a coral reef to explore the tiny animals that build reefs, the photosynthetic algae inside their cells, and the damaging process of coral bleaching. Corals get much of their energy from symbiotic algae that live inside their cells. When ocean temperatures rise beyond a certain threshold, the algae’s ...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 ... BioInteractive's Online Community is a central destination for life science educators to share expertise and resources, access teaching tools, curate resource collections, and engage in professional learning. Create an account and get verified as an educator to join the Online Community and gain access to all of the exciting new features.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 ...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 ...Esta animación explora los componentes y enlaces químicos de los nucleótidos que constituyen el ADN.Como se muestra en la animación, el ADN es un polímero co...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. This interactive module explores how the changes in oxygen levels throughout Earth’s history have impacted the planet’s environment and types of life. Today, oxygen (O 2) makes up about 21% of Earth’s atmosphere, but oxygen levels in both the atmosphere and ocean were much lower in Earth’s past. In this Click & Learn, students …An interactive map showing the different keystone species and their ranges across the globe. Supporting Information. HHMI BioInteractive. Earth is home to many diverse habitats, each with a distinctive collection of plants and animals. But not every species has an equal impact on the others around them. Sometimes, the presence or absence of a ... Aug 26, 2014 ... The Making of a Theory: Darwin, Wallace, and Natural Selection — HHMI BioInteractive Video · Comments1K.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 ...The tailbone, for example, is all that’s left of an ancestral tail. This Click & Learn allows students to explore these and many other features — and compare them to those of fossilized organisms, such as Ardipithecus (Ardi), Gorgonopsid, Notharctus, Proconsul, Tiktaalik — to discover the evolutionary history of our bodies.Submit comments, questions, or feedback about this resource via email to: [email protected] BioInteractive brings the power of real science stories into tens of thousands of high school and undergraduate life science classrooms.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 ...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 …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.BioInteractive's Online Community is a central destination for life science educators to share expertise and resources, access teaching tools, curate resource collections, and engage in professional learning. Create an account and get verified as an educator to join the Online Community and gain access to all of the exciting new features.Submit comments, questions, or feedback about this resource via email to: [email protected]: Infection Video Page Open video for Apple VoiceOverProbe 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 ...Description. This interactive module explores how the process of eukaryotic gene expression is regulated, using the production of the enzyme lactase as an example. Eukaryotic gene expression can be regulated by several processes, including transcriptional regulation, RNA processing, translational regulation, and protein processing and …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 ...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 ... 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 ... 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. Exploring Keystone Species Meet the animal influencers that play an oversize — and often surprising — role in shaping our world. Explore the MapThe 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) …CSI WILDLIFE. DNA analysis is helping law enforcement stop the poaching of African elephants for their ivory. In this interactive, you will analyze genetic evidence from two crime scenes to solve each case. In the first, you will compare the DNA profile of a sample of seized ivory to the DNA profiles of elephants that were killed in a park to ...Understanding Global Change. This interactive module allows students and educators to build models that explain how the Earth system works. The Click & Learn can be used to show how Earth is affected by human activities and natural phenomena. Environmental Science. Earth Science.Mar 3, 2023 · 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 calculations guide students’ understanding of how energy is distributed through a variety of ecosystems. Most students are familiar with the ... Dec 14, 2016 · This hands-on activity allows students to analyze DNA sequences of Ebola viruses. Students use these sequences to track the virus’s spread during the 2013–2016 Ebola outbreak in West Africa. After watching a related video, students sort strips of paper showing sequences from Ebola viruses isolated from infected patients from Sierra Leone. Teaching Genetics and Molecular Biology Using Lactose Intolerance. This playlist can be used to teach several core concepts in genetics and molecular biology by having students collect and interpret evidence to explain the biology of lactose intolerance. It can be used in a general high school biology course.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 …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 …Exploring Keystone Species. Meet the animal influencers that play an oversize — and often surprising — role in shaping our world. Explore the Map.This worksheet is designed for the Interactive Activity on Trophic Cascades at HHMI Biointeractive . Students learn how the loss or addition of a species, ...The pika — a small, burrowing mammal related to the rabbit — impacts soil properties and flooding on the Tibetan Plateau. Range map of the plateau pika. Pikas do not hibernate and are an important food source for predators year-round. Photo credit: iStock/Getty Images Plus. The Tibetan Plateau has one of the highest grassland ecosystems in ...
Description. This film tells the story of the ecologists who first documented the role of keystone species in ecosystem regulation. Some Animals Are More Equal than Others explores the work of ecologists Robert Paine and James Estes. Robert Paine’s experiments showed that removing starfish from tidal pools has a big impact on the …. Buy mincraft
Mar 3, 2023 · 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 calculations guide students’ understanding of how energy is distributed through a variety of ecosystems. Most students are familiar with the ... 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.Sep 29, 2020 · Science is a dynamic and iterative process that is not adequately represented by simple linear recipes. This Click & Learn engages students in thinking critically about how science works. They can use the tool to document their own science practices, or to reflect on the processes portrayed in an article or video. Surveying Gorongosa's Biodiversity. In this video, biologists Piotr Naskrecki and Jennifer Guyton identify and record the diversity of species in Gorongosa National Park’s Cheringoma Plateau. Environmental Science. Scientists at Work. High School — General.Great Transitions: The Origin of Humans — HHMI BioInteractive Video.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 ...Details Curriculum Connections Understanding Global Change | This interactive module allows students and educators to build models that explain how the Earth system works. The Click & Learn can …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!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 ...Model Builder | This interactive tool introduces students to building scientific models. Educators can use the tool to create assignments and, in some cases, automatically grade student models. Students can also use the tool to check their work against provided reference models. Developing and using models is a key science practice highlighted in …Jul 26, 2013 ... Jul 26, 2013 - Howard Hughes Medical Institute's Biointeractive: Resources for science teachers and students, searchable by topic & resource ...This Click & Learn begins with one common example of a stem-cell-based therapy: bone marrow transplantation. This therapy has helped many people with blood cancers, such as leukemia. The Click & Learn also discusses how stem cells can be used to promote healing and treat diseases. For example, therapies based on adult stem cells …hhmi | BioInteractive. Using HHMI BioInteractive Resources to Support Student Understanding of Evolution through the Science Practices. Tuesday, May 7. 7:00 PM ...Description. This interactive, modular lab explores techniques for identifying and recording the electrical activities of neurons, using the leech as a model organism. In this lab, students investigate and map how neurons in the leech’s nervous system respond to different touch sensations. The lab includes sections on dissecting a leech ...Description. This interactive module explores how the process of eukaryotic gene expression is regulated, using the production of the enzyme lactase as an example. Eukaryotic gene expression can be regulated by several processes, including transcriptional regulation, RNA processing, translational regulation, and protein processing and …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 ...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.Esta animación explora el proceso de la fotosíntesis y las estructuras que lo llevan a cabo. La fotosíntesis convierte la energía lumínica del sol en energía...Ambassadors ... HHMI BioInteractive Ambassadors are expert high school and undergraduate educators who work closely with BioInteractive to promote and support ...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 ….
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