Biology Themes and Concepts

Biologists study life at multiple levels of organization, from the molecular biology of a cell to the anatomy and physiology of plants and animals, and evolution of populations.

All organisms are made up of cells that process hereditary information encoded in genes, which can be transmitted to future generations.

Energy processing is not important to life as it does not allow organisms to move, grow, and reproduce.

Life on Earth emerged more than 2.7 billion years ago.

Biologists do not use the scientific method to make observations, pose questions, generate hypotheses, perform experiments, and form conclusions about the world around them.