| A | B |
| herbivore | plant eater |
| carnivore | meat eater |
| omnivore | eats both plants and aimals |
| decomposer | bacteria or fungus or invertebrate that changes organic matter to soil |
| prey | animal killed by another for food |
| predator | animal that hunts other animals for food |
| adaptation | to change to survive |
| producer | makes own food |
| consumer | eats food |
| ecology | studies how organisms relate to other organisms and the environment |
| population | number of organisms |
| symbiosis | 2 organisms that use each other |
| commensalism | 2 organisms one benefits the other does not but is not harmed |
| parasitism | 2 organism one benefits but harms the other |
| mutualism | 2 organism need each other |
| carrying capacity | # of organisms able to live in an environment |