Examine the structure of cells. See how their specialized structures carry out everything from energy production and waste disposal to the synthesis of new molecules and the storage of genetic material. Includes five segments: • Introduction to Cells • Simple and Complex • Animal or Vegetable • Reproduction and Growth • Regenerating Life
DNA carries the instructions for a plant's or animal's characteristics. Discover how genes control an organism, how scientists are working to unlock the mysteries of DNA, how genetic procedures for reproduction provide some answers and more questions. Includes four segments: • Genes: The Blueprint of Life • The Formation of Cells • Future Generations • Making Babies: Genetically Perfect
In his 1850 work The Origin of the Species, Charles Darwin presented the notion that all species evolved from earlier forms of life and that they change and adapt to their environment as a result of what Darwin called natural selection. Investigate Darwin's theory of evolution, which has become the organizational principle biologists use to explain the life sciences. Includes five segments: • A New Look at An Old World • From a Single Cell • Evidence for Evolution • Evolution in Action • The Origin of Species
Examine how matter and energy are organized in living systems, allowing adaptation to the environment. Includes five segments: • The Flow of Energy • Alive with Energy • Food and the Limits of Life • Breaking Down Digestion • Dino Diet
Discover how plants and animals compete and cooperate in their environment, creating a balance of nature within an ecosystem. Includes four segments: • Energy Transfer • Interacting Organisms • The Impact of Change • In Celebration of Trees
Organisms thrive or perish depending on their ability to adapt to the conditions of their biome. Explore the world's major biomes, and see how organisms adapt to these ecological communities. Then take a look at how humans have altered some biomes. Includes five segments: • Tundra and Taiga • The Temperature Zone • Deserts and Tropics • Aquatic Biomes • Whales