An organism is a single individual, or being, that cannot survive without its parts. Learn about the three domains of organisms (Bacteria, Archaea, and Eukarya) and their characteristics, and see examples of different types of organisms.

Here are 10 examples of organisms across various domains and kingdoms: Escherichia coli ( E. coli ) : A common bacterium found in the intestines of many animals, including humans. It is often used in scientific research.

Learn about the different types of organisms, such as producers, consumers, herbivores, carnivores, omnivores, scavengers, parasites, predators, and decomposers. See examples of each type and how they interact with the ecosystem.

All living organisms — from small to big — share characteristics that separate them from the divisions in nature that do not exhibit life, like rocks or soil. Living creatures have cells, DNA, the ability to convert food into energy, grow, reproduce, respire and move.