| A | B |
|---|
| environment | all of the living and nonliving things that affect the life of an organism |
| biotic factors | the living things in an environment |
| abiotic factors | the nonliving things in an environment |
| biosphere | the zone of earth where life is found |
| ecosystem | an area where living things interact, exchanging energy and materials |
| habitat | the kind of place in which an organism lives |
| niche | the role of an organism in an ecosystem |
| community | all the organisms living together in an area |
| population | is a group of organisms of one species that lives in a given area |
| producer | an organism that makes its own food |
| consumer | an organism that eats other organisms |
| herbivore | a consumer that eats plants |
| carnivore | a consumer that eats animals |
| preditor | an animal that hunts and kills other animals for food |
| prey | the animal that is hunted |
| scavenger | an animal that feeds on dead or dying animals |
| omnivore | a consumer that eats both plants and animals |
| decomposer | an organism that breaks down the remains of dead plants and animals into simpler substances |
| food chain | the transfer of energy in the form of food from one organism to another |
| food web | an overlapping of food chains in a community |
| extinct | a species that no longer exists |
| endangered species | a species that is in danger of becoming extinct |
| ecology | the study of interactions between living things and their environment |
