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Investigates the reasons why cattle and humans have been linked together for over 30,000 years. Analyzes the anatomy of the cow's stomach, detailing the purpose of each chamber. Visit the Masai with their cattle herds and the sacred cows of India. Introduces the main cattle breed of the 800 breeds developed in England, explaining how artificial selection is used to produce desirable characteristics. Also introduces British dairy cow detailing the working of the udder and teats and the use of genetic engineering to increase milk production. Interviews Eric Schlosser, an author about the development of slaughterhouse methods in America. Also visits a family ranch where cattle are being raised in natural conditions under a grass management system.
(Source: DCMP)
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. Ms. Frizzle's class takes a field trip inside a 1950s sci-fi film. The movie's main character, the power-mad General Araneus is determined to destroy the mantis, but Phoebe wants to trap it and save it. Shrinking to the size of real spiders, the kids discover how spiders construct a variety of silky snares, making them world-champion trappers. Can the kids save the mantis — and stop Araneus before it's too late?
Draws on documentary and archival footage, 3-D and 2-D animations, and high-tech imaging to investigate a variety of virological topics: the nature of pandemics as illustrated by the SARS outbreak in China; genetic sequencing of Spanish influenza from exhumed tissue of a century-old corpse; how animal viruses jump the species barrier; the dissection of live viruses in a biosafety level-4 lab; the work of an Ebola research team in Gabon; the discovery of mimivirus; applications of Onyx-015, a genetically engineered adenovirus; and more. Features Vincent A. Fischetti of The Rockefeller University, Jeffery Taubenberger of the Armed Forces Institute of Pathology, Y. Guan of The University of Hong Kong, Didier Raoult of the French National Center for Scientific Research, and other leading virus specialists.
Part of the "Gunther's ER" series. Beyond the immediate risks to a patient's life, doctors must also identify other bodily damage. Dr. Gunther von Hagens examines the kinds of injuries that can lead to permanent disability if not quickly addressed. Dissecting a female body donor who died after falling from a window, von Hagens locates fractures throughout her skeleton, explains how bones break, and bends a human spine to discover how much force it can withstand before snapping. Also investigates the causes and consequences of brain damage. Recreating head injury to the exposed brain of another cadaver, von Hagens illustrates how the rigid, closely fitting skull can actually damage the brain it is meant to protect. NOTE: Viewer discretion is advised. Contains clinically explicit language and nudity.
The Magic School Bus is an award winning animated children’s television series based on the book series of the same title by Joanna Cole and Bruce Degen. It is notable for its use of celebrity talent and being both highly entertaining and educational. It's the night of the rock lovers' annual Granite Awards, and Arnold is about to become the first kid ever to win the coveted Rocky Award. He's so excited; all he's been able to eat for weeks are "Seaweedies.” When he arrives for the big event, he’s nervous and orange. Once the class determines that the orange isn't on Arnold's skin, they shrink down to explore what's underneath. They discover that his whole body is made of living cells, and they're all orange.
While the human brain and nervous system are wired with hundreds of billions of nerve cells, or neurons, sea slugs can get by with tens of thousands. Ironically, sea slugs reveal a lot about the chemistry of the human brain and nervous system. In fact, they are ideal as study subjects for research on learning, memory, and how neurons control behavior. With support from the National Science Foundation, analytical chemist Jonathan Sweedler and his team at the University of Illinois are working to develop new measurement tools that enable insights into the function of individual cells in the central nervous systems of slugs and other animals in order to uncover novel neurochemical pathways. Part of the National Science Foundation Series “Science Nation.”
The rock pocket mouse is a living example of Darwin's process of natural selection. Not only is evolution happening right now everywhere around us, but adaptive changes can occur in a population with remarkable speed. This speed is essential if you're a desert mouse living in an environment where a volcanic eruption can reverse selective pressure in nearly an instant. Features Dr. Michael Nachman, whose work in the field and in the lab has quantified the selective pressure of predators and identified the genes involved in adaptation. From ecosystem to molecules, pocket mice show the viewers how random changes in the genome can take many paths to the same adaptation-a colored coat that hides them from predators.
Figure 2.9 (OpenStax, Biology 2e) caption: Two or more atoms may bond with each other to form a molecule. When two hydrogens and an oxygen share electrons via covalent bonds it forms a water molecule.
(Source: OpenStax)
Part of the "Gunther's ER" series. As Dr. Gunther von Hagens makes clear, a shortage of blood can mean that insufficient oxygen is reaching the major organs, usually resulting in shock and organ failure. Opens with a graphic bleeding demonstration, re-creating injury to blood vessels in the hand of a cadaver. Also examines the consequences of blood loss in the body's vital organs by creating knife wounds in the torso of a frozen body, then sawing it into slices to reveal the path of the blades and the shocking extent of the damage. Also explores a lesser well-known cause of blood loss-fractured bones-which von Hagens illustrates in an experiment in which a femur dissected from a fresh cadaver is made to bleed as it would in life. NOTE: Viewer discretion is advised. Contains clinically explicit language and nudity.
Anna was born with a sweet tooth, and as a young woman, she created a successful business using it. Her delicious jams and jellies gave pleasure to many, but did they also cause harm? Explores the way the human body processes food and how its long-term growth and development are shaped by eating habits. Illustrating cellular aging and its relationship to AGEs, or advanced glycation end products, a connection is drawn between the bacteria an infant must consume to build a healthy immune system and the bacteria that consume the body at death. As Anna's life draws to a close, viewers will understand that "dust to dust" is a cycle in which humans take an active part--every time they sit down to a meal.
Part of the "Gunther's ER" series. The human brain suffers irreversible damage if deprived of oxygen for even a few minutes-a fact Dr. Gunther von Hagens demonstrates by utilizing human cadavers as examples. Simulating an artery injury to illustrate oxygen depletion through blood loss, von Hagens then focuses on problems affecting the trachea, the top priority for ER doctors. In order to show the major structures of the airway and how they can be blocked by foreign objects, von Hagens inserts an endoscope into his own throat and saws a frozen body's throat in half, revealing the major structures of the airway and their potential weaknesses. Red Cross first-aid expert Emma Rand explains simple techniques for clearing the airway, while emergency medicine consultant Dr. John Heyworth shows how paramedics treat complex trachea damage. NOTE: Viewer discretion is advised. Contains clinically explicit language and nudity.
In the top story, Katie speaks with a group of teens who are raising money for Save the Children. Save the Children is an organization that helps kids around the world by providing food, shelter, medicine, and a brighter future. Eden debunks some common health advice. She gets the facts on: going outside with wet hair, how long gum stays in your stomach, whether or not milk actually helps people sleep, and if scaring someone is an effective cure for hiccups. Magdalene reports on the internal navigation of humpbacked whales. Scientists have found that humpbacked whales can do a thousand-mile trip in almost a perfectly straight line. Other segments include the history behind Florida's state flag and the Vietnam Memorial in Washington, D.C. Part of the "Teen Kids News" series.
After the end of the last ice age 10,000 years ago, populations of marine stickleback fish became stranded in freshwater lakes dotted throughout the Northern Hemisphere in places of natural beauty like Alaska and British Columbia. These little fish have adapted and thrive, living permanently in a freshwater environment drastically different than the ocean. Stickleback bodies have undergone a dramatic transformation, some populations completely losing long projecting body spines that defend them from large predators. Various scientists, including David Kingsley and Michael Bell, have studied living populations of threespine sticklebacks, identified key genes and genetic switches in the evolution of body transformation, and even documented the evolutionary change over thousands of years by studying a remarkable fossil record from the site of an ancient lake ten million years ago.
Figure 2.7 (OpenStax, Biology 2e) caption: Bohr diagrams indicate how many electrons fill each principal shell. Group 18 elements (helium, neon, and argon) have a full outer, or valence, shell. A full valence shell is the most stable electron configuration. Elements in other groups have partially filled valence shells and gain or lose electrons to achieve a stable electron configuration.
Showing collections 1 to 5 of 5
Biology related concepts
A collection containing 59 resources, curated by Benetech
A collection of Chemistry related resources
A collection containing 67 resources, curated by Benetech
Resources to teach younger students about animals
A collection containing 58 resources, curated by DIAGRAM Center
Resources related to vision
A collection containing 12 resources, curated by Charles LaPierre
Collection of anatomy resources
A collection containing 21 resources, curated by Benetech
