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A living thing


An environment that provides the things an organism needs to live, grow, and reproduce

Biotic factor

A living part of an organism's habitat

Abiotic factor

A nonliving part of an organism's habitat


The process in which organisms use water along with sunlight and carbon dioxide to make their own food


A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce


All the members of one species in a particular area


All the different populations that live together in an area


The community of organisms that live in a particular area, along with their nonliving surroundings


The study of how living things interact with each other and their environment

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