Elements of Biology

Episodes in this Series

101. Biological Evolution

Explains the concepts behind The Origin of Species, in which Darwin postulated that life originated with a single cell and outlined how natural selection drove a process of evolution that resulted in the incredible diversity of plant and animal species we see today.

102. Biomes: The Adaptations of Organisms

Describes the major types of biomes around the world, spotlights examples of how organisms have adapted to their environments, and looks at how humans have changed ecosystems.

103. Ecosystems: Organisms and Their Environments

Explores how plants and animals compete and cooperate to create the "balance of nature" within stable environments.

104. Genetics: The Molecular Basis of Heredity

An overview of the structure and functioning of DNA and how scientists are working to unlock its mysteries.

105. Matter and Energy: Organization in Living Systems

How matter and energy are organized in living systems and how they prompt an organism to adapt to changing conditions.

106. The Cell: Structure and Function

A basic overview of the cell and how it produces energy, disposes of waste, synthesizes new molecules, and stores genetic material.

Your time zone has not been set. We invite you to customize our pages to your own time zone. In the meantime, all times default to Eastern Time.