| A | B |
|---|
| organism | A living thing. |
| habitat | An environment that provides the things an organism needs to live, grow, and reproduce. |
| biotic factor | A living part of an organism's habitat |
| community | All the different populations that live together in an area |
| abiotic factor | A nonliving part of an organism's habitat. |
| ecology | The study of how living things interact with each other and their environment. |
| ecosystem | The community of organisms that live in a particular area, along with their nonliving surroundings. |
| population | All the members of one species in a particular area. |
| species | A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce. |
| photosynthesis | The process in which organisms use water along with sunlight and carbon dioxide to make their own food. |
