| A | B |
|---|
| autotroph | an organism that produces its own food. A producer. |
| scavenger | a carnivore that feeds on the bodies of dead organisms |
| competition | the struggle between organisms for the same limited resources in a particular area |
| prey | an animal that is hunted and killed by predators |
| predator | an animal that hunts and kills other animals for food |
| parasite | an organism that survives by living and feeding on other organisms |
| host | the organism in a parasitic relationship that provides a home and/or food for the parasite |
| heterotroph | organism that cannot make its own food. A consumer |
