Biology: The Study of Life

Biologists can 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.

The unifying themes in biology include the presence of cells, hereditary information encoded in genes, evolution, energy processing, and the ability of organisms to regulate their internal environments.

Biologists use the scientific method to make observations, pose questions, generate hypotheses, perform experiments, and form conclusions about the world around them.

<p>Biologists seek to study and classify various forms of life, from prokaryotic organisms such as archaea and bacteria to eukaryotic organisms such as protists, fungi, plants, and animals.</p> Signup and view all the answers

<p>Life on Earth emerged more than 3.7 billion years ago.</p> Signup and view all the answers