| A | B |
|---|
| organism | a living thing |
| habitat | an environment that provides the things an organism needs to live, grow, and reproduce |
| biotic factor | the living parts of a habitat |
| abiotic factor | the nonliving parts of a habitat |
| photsynthesis | the process by which plants make their own food |
| species | a group of physically similar organisms that can mate and produce offspring that can mate and reproduce |
| population | all the members of one species in a particular area |
| community | all the different populations that live together in an area |
| ecosystem | the community of organisms that live in a particular area along with their nonliving surroundings |
| ecology | the study of how living things interact with each other and their environment |
