| Term | Definition |
| carnivore | animal that eats only other animals |
| prey | animal that is kileed and eaten by another animal |
| decomposer | organism that feeds on and breaks down dead organisms, they put nutrients back in the soil for plants |
| ecosystem | all interactive living and nonliving things in an area |
| nutrients | things in food that living things need |
| herbivore | animal that eats only plants |
| food chain | shows how living things get food and energy |
| habitat | place where an organism lives |
| producer | green plant that makes food |
| primary consumer | an animal that gets its energy only from producers |
| endangered | when there are so few of a species that it is in danger of dying out |
| predator | hunts and eats other animals |
| adaptations | behaviors and physical characteristics of species that allow them to live successfully in their environment |
| community | all populations of animals that live in an area |