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Figure 2.27 (OpenStax, Biology 2e) caption: These functional groups are in many different biological molecules. R, also known as R-group, is an abbreviation for any group in which a carbon or hydrogen atom is attached to the rest of the molecule.
(Source: OpenStax)
When the nerve cells of squid suffer an injury, something unexpected happens with the tiny pouches of colored pigment, called chromatophores. A MIT scientist discusses this phenomenon, and how it can be used and modeled on the computer with some surprisingly simple rules. Part of the "Science Out Loud" series.
(Source: DCMP)
Solutions are uniform mixtures of molecules in which any of the phases of matter can be dissolved in another phase. Whether solids, liquids, or gases, solution chemistry is important because most chemical reactions, whether in the laboratory or in nature, take place in solutions. In particular, solutions with water as the solvent are the core of all biology. Extending the particle model of matter to solutions enables chemists to predict what will happen to a deep-sea diver who breathes different mixtures of gases or to the life forms in the ocean as carbon dioxide levels rise in the atmosphere. Part of Chemistry: Challenges and Solutions Series.
Anna has built a successful business from the ground up, and upon retirement, she leaves the company to her employees, not to her son. What does that decision tell us about Anna's psychology and about the development of the human brain over a lifetime? Explores the emotional and neurological elements of learning, explaining how the brain processes and stores experiences and prepares for future decision-making. Employing real-to-life dramatizations, Anna's journey from innocent teenager to philosophical retiree--and the changes that take place in her cortex, hippocampus, and neural synapses as she faces and overcomes challenges--are all depicted. In addition, several influential brain experiments from the past decade are described.
What is the domain Archaea? This episode compares and contrasts characteristics of Archaea with bacteria. Part of "The Amoeba Sisters" series.
Protists are a diverse collection of organisms. Watch this animated video to find out how these single-celled organisms function.
The hummingbird has a forked tongue that is lined with hair-like extensions. Its design is especially useful for drinking nectar from flowers.
Illustration showing the carbon cycle using animals and plants.
How do mollusks move? Close-up photography reveals the locomotion secrets of snails, sea hares, scallops, octopi, and squids.
What is biodiversity? Students explore the concept of biodiversity as it applies to a wide range of ecosystems on Earth.
Experience a spring awakening in the Sonoran desert. Segment of video from Wild Chronicles Series.
In this episode, Pinky and Petunia explore various ecological relationships. They discuss and provide examples for predation, competition, parasitism, mutualism, and commensalism. Part of "The Amoeba Sisters" series.
Living and nonliving things make up the world. Students will learn how living things interact with each other and with nonliving things in an ecosystem.
Outlines the characteristics, shapes, and structures of viruses and monerans, more commonly called bacteria. Notes ways that both affect our lives.
Discusses the terminology, processes, and products related to photosynthesis. Questions bridge segments and lead to information on tropism, seed structure, and germination. Includes a review and a quiz.
Natural selection is a mechanism of evolution. In this episode, Pinky and Petunia discuss the relationship of natural selection and antibiotic resistance in bacteria. Part of "The Amoeba Sisters" series.
Discusses how the activities and processes of cells affect our lives. Covers metabolism, diffusion, respiration, and cell growth and mitosis. Includes questions and a quiz.
What happens when a whale dies? This short piece explores the concept of decay, and the role decay plays in giving life to other organisms.
Shows what happens to a boy's body during puberty, and what to expect from the physical and emotional changes that accompany it.
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
