| A | B |
|---|
| structures | parts of plants and animals |
| roots | absorb water and nutrients |
| nutrients | taken in by the roots |
| stem | supports the plant and carries water and nutrients |
| leaf | plant structure that makes the food |
| leaf vein | small tubes that carry water in the leaf |
| epidermis | outer covering of the leaf |
| edible | able to eat |
| skin | outer covering of an animal |
| lungs | saclike structures that take in oxygen |
| pores | small holes in the skin |
| organisms | all living things |
| respond | react to the environment |
| reproduce | to make more of one's kind |
| resource | needed to survive |
| competition | the struggle for resources |
| niche | job or role of an organism |
| food chain | flow of energy between living things |
| producer | makes its own food |
| consumer | cannot make its own food |
