| A | B |
|---|
| producers | organisms that make their own food |
| consumers | animals that eat other organisms |
| herbivores | animals that eat only plants |
| carnivores | animals that eat only other animals |
| omnivores | animals that eat both plants and animals |
| decomposers | organisms that feed on dead plants and animals, as well as animal wastes |
| predators | animals that hunt other animals for food |
| prey | animals that are hunted by predators |
| food chain | the path of energy from the sun to a producer to an animal to another animal |
| food web | a group of overlapping food chains |
| energy | what is needed to do work or cause change |
| unique niche | an organism's role in an ecosystem based on how it gets its food |
| sun | a typical star that is the source of light and heat for the plants in the solar system |
| nocturnal | active at night |
| graze | to feed on grass and pasturage as do cattle, sheep, etc. |
| flow | move along or out steadily and continuously in a current or stream |
