| A | B |
|---|
| producers | an organism that makes its own food |
| consumers | organisms that can ot make their own food, so they must onsume other organisms for food |
| herbivores | animals that eat plants |
| omnivores | animals that eat plants or animals |
| carnivores | animals that eat other animals |
| decomposers | an organism that breaks down the remains of dead plants and animals |
| limiting factors | any resource necessary to the survival of populations in an ecosystem |
| niche | the special role an organism plays in a community |
| habitat | the place where an organism lives and hunts for food |
| food web | shows how a group of food chains are linked together |
| food chain | shows how energy passes from one organism to another as food |
| energy pyramid | a model that shows how much food energy flows through a food web |
| predator | an animal that hunts other animals for food |
| prey | a living thing that is hunted for food |
| parasite | an organism that lives on or in another organism and benefits |
| host | an organism that a parasite lives on or in and is harmed by the other |
