| A | B |
| environment | all of the conditions surrounding an organism |
| producer | organism that makes its own energy |
| ecosytem | all of the living and nonliving things in an area and their interactions |
| conservation | an attempt to preserve or protect an environment from harmful changes |
| food chain | a series of steps by which energy moves from one type of living thing to another |
| predator | a consumer that hunts and eats another animal |
| food web | a diagram that combines many food chains into one picture |
| population | a group of organisms of one species that live in area at same time |
| habitat | a place that provides all the things an organism needs to live |
| consumer | organism that cannot make its own food |
| pollution | any substance that damages the environment |
| prey | any animal that is hunted by others for food |
| decomposer | organism that gets its energy by breaking down wastes and dead organisms |
| community | the group of all populations in an area |