| A | B |
|---|
| carnivores | eat meat only |
| herbivores | eat plants only |
| omnivores | eat plants and animals |
| water cycle | water moves between the atmosphere and Earth |
| transpiration | plants release moisture through leaves |
| protein | compounds that are the building blocks of living things |
| nitrogen cycle | nitrogen gas changes to compounds that living things can use |
| food chain | path energy takes from one living thing to another |
| food web | overlapping food chains |
| evaporation | liquid water changes to water vapor |
| condensation | water vapor changes to liquid water |
| cell respiration | cells use oxygen to release energy from food |
| oxygen-carbon dioxide cycle | plants use carbon dioxide and produce oxygen, other living things do the opposite |
