| A | B |
|---|
| ecosystem | all the living and nonliving things that interact in an area |
| habitat | place where an organism lives that provides what the organism needs |
| biotic factors | living parts of an ecosystem |
| abiotic factors | nonliving parts of an ecosystem |
| species | group of organisms that are physically similar and can reproduce |
| population | all the members of one species in a particular area |
| community | all the different populations that live together in an area |
| ecology | study of how living things interact with each other and their environment |
