| A | B |
|---|
| food chain | a group of living things that form a chain in which the first living thing is eaten by the second |
| food web | a group of food chains connected in an ecosystem |
| ecosystem | all the living and nonliving things in a certain area |
| absorbs | takes in |
| algae | simple living things that are composed of one or more cells. |
| ridges | a raised narrow strip |
| predators | animals that hunt and kill other animals for food |
| scavenger | an animal that feeds on dead animals |
| omnivores | animals that eat both animal flesh and plants |
| diet | food and drink eaten by an animal |
| carnivore | an animal that eats only flesh of other animals |
| herbivore | an animal that eats only plants |
| nutrients | something that is needed by people, animals, and plants for life and growth |
| photosynthesis | process a plant uses to make its own food |
| decomposers | living things that get rid of dead materials. |
