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Biology is the study of life. It encompasses the cellular basis of living things, the energy that underlies the activities of life, and the genetic basis for inheritance in organisms. Topics covered include the smallest components of living things: atoms, molecules, organelles, and cells. Part of the "Biology" series.
(Source: DCMP)
Part of the "Branches on the Tree of Life" series. Echinoderms are one branch of the deuterostome line of animal evolution, the branch to which Chordates also belong. Covers phylum characteristics and key biological details for five classes: sea stars, brittle stars and basket stars, sea urchins and sand dollars (including developmental stages), sea cucumbers, and crinoids (feather stars).
Part of the "Branches on the Tree of Life" series. Imagine an animal with no mouth, no digestive system, no excretory or circulatory organs, no brain nor nervous system, and no movement as an adult. In spite of their simple nature, sponges are actually one of the most interesting animal phyla when viewed in developmental, ecological, and evolutionary terms. Clarifies the structure, function, classification, and ecological roles of sponges through animations and time-lapse microscopy.
Part of the "Life in Aquatic Environments" series. Shows the variety of body forms and structures found in an environment ripped by waves. Examines structural, chemical, and behavioral adaptations that protect animals in this crowded environment. Looks at adaptations used to harvest the abundant food sources of the shore. Provides an overview of asexual and sexual strategies and the importance of larval development in the plankton. Reveals complex webs of life living in these accessible habitats.
Part of the "Branches on the Tree of Life" series. The phylum Chordata includes tunicates, sea lancelets, hagfish, and all familiar vertebrate animals. Explores how these seemingly diverse animals evolved and how the group is unified by four characteristic structures: a hollow dorsal nerve chord, a supportive notochord, gill slits, and a post-anal tail. Key milestones in vertebrate evolution include improvements in swimming and feeding, the evolution of paired fins and a primitive lung, movement onto the land, and the emergence of the amniotic egg.
Part of the "Branches on the Tree of Life" series. The bacteria section uses compelling microscopy of living bacteria to examine their structure, physiology, behavior, and the vital roles these microbes play in the biosphere.
Part of the "Branches on the Tree of Life" series. Describes the discovery of viruses and their structure, how viruses are studied, how they infect their hosts, and how they replicate. Provides details on the T-4 bacteriophage and retroviruses, such as HIV.
Part of the "Branches on the Tree of Life" series. Explores the structure, life cycles, ecology, classification, and evolutionary relationships of four major lines of fungi: Chytrids, Zygomycetes (various molds), Ascomycetes (yeasts, cup fungi, and most lichens), and Basidiomycetes (rusts and mushrooms). Emphasizes adaptations and reproductive mechanisms.
Part of the "Branches on the Tree of Life" series. Phylum Arthropoda is the most luxuriant branch on the tree of life. Covers phylum characteristics and three major arthropod classes: Crustaceans (copepods, waterfleas, branchiopods, decapods, and barnacles), Chelicerates (scorpions, pseudoscorpions, spiders, ticks, and mites), and Uniramians (centipedes, millipedes, and insects). Focuses on adaptations, life cycles, and evolutionary relationships in each section.
Part of the "Branches on the Tree of Life" series. The term "algae" is a catchall for several evolutionary lines of photosynthetic organisms: dinoflagellates, red algae (plastids with chlorophyll A), diatoms, yellow-brown algae and brown algae (chlorophylls A and C), and green algae (chlorophylls A and B). Explores the diversity, structure, ecological roles, and modern classification of these primary producers.
Part of the "Branches on the Tree of Life" series. Phylum Mollusca is the second most diverse phylum of animals, with over 100,000 known species. First examined are the basic characteristics of the phylum-a soft body, muscular foot, mantle cavity with gill, and hard calcified shell. Studies the four most familiar classes of molluscs (chitons, gastropods, bivalves, and cephalopods) in depth, viewing structure, life history, adaptations, and ecological interactions.
Part of the "Branches on the Tree of Life" series. The term "protist" covers a wide range of microscopic organisms formerly clumped into "Kingdom Protista." New molecular analyses show that the protistan lines of evolution go so far back in time they can be considered as different kingdoms of life. Through photography of living protists, amoebas, flagellates, algae, and the elegant ciliated protists are introduced in ten learning modules.
Part of the "Branches on the Tree of Life" series. Worms with segmented bodies make up the phylum Annelida. Explores the three classes of annelids: Class Polychaeta (feeding, locomotion, and larval stages), Class Oligochaeta (lifestyles, feeding adaptations, and anatomy of freshwater oligochaetes and earthworms), and Class Hirudinea (leeches, crayfish, and worms show adaptations for commensal, parasitic, and scavenger lifestyles). DNA evidence places annelids close to the molluscs on the tree of life.
Genetic and neurological research has led to increasingly sophisticated medical capabilities, resulting in a growing number of moral and ethical quandaries. Surveys recent milestones in biology, many of which have produced as much controversy as insight. Reporting on the newly identified anti-aging gene SIR2 and the cross-species implantation of stem cells, it also inquires into artificial limb technology, the dynamics of the teenage brain, and the storage of environmental toxins in the human body. A visit to the American Bible Belt, including Kentucky's Creationist Museum, highlights the ongoing debate over human origins.
Homeostasis refers to the body’s ability to maintain a stable internal environment, and maintaining homeostasis requires that the body continuously monitors its internal conditions. From body temperature to blood pressure to levels of certain nutrients, each physiological condition has a particular set point. Topics covered include homeostasis, negative feedback loop, nervous system, endocrine system, digestive system, excretory system, musculoskeletal system, and the immune system. Part of the "Biology" series.
Contains 8 segments: "Matter and Energy for Life," "Ecosystems," "Populations," "Homeostasis: The Body in Balance," "Inheritance," "Behavior and the Nervous System," "Biodiversity," and "The Biosphere." Students have opportunities to become involved in hands-on activities. Supports the learning of key concepts in biology in tandem with the textbook also offered by the publisher.
From fossil evidence, it appears that life may have existed on Earth as early as 3.5 billion years ago. This suggests that life must have evolved sometime during Earth's tumultuous first billion years. How did life evolve? What did early forms of life look like? Topics covered include protocells, endosymbiosis, prokaryotes, eukaryotes, evolution, heredity, variation, natural selection, genetic drift, and gene flow. Part of the "Biology" series.
Some of the most powerful and useful things in the world come from plants. Who knew they could help unlock some of biology's mysteries by using the approach of mapping biological pathways? Part of "Science Out Loud" series.
Experts Eli Green, Jaymie Campbell, and Alessia Palanti define pertinent terms like cisgender, transgender, gender identity, gender expression, and pronouns. Viewers learn about gender norms and stereotypes that affect all people, no matter how they identify on the gender spectrum. Teens describe their personal experiences with gender and explain the critical importance of allies in their lives.
The cell cycle is the series of events that cells go through as they grow and divide. This title provides a discussion on each of the stages of the cell cycle: prophase, metaphase, anaphase, telophase, and cytokinesis. Part of the "Biology" series.
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
