| A | B |
| Bud | small swelling on the stem or branch of a plant; a bud will later grow into a flower, leaf, or branch |
| Wilt | to become limp and droop, as a plant might do without enough water |
| Adaptation | the action of a plant or an animal which allows it to live in its environment |
| Environment | the air, the water, the soil, and all the other things that are around living things |
| Habitat | the place in which a living thing lives, including all the other kinds of living and nonliving things sharing its environment |
| Migration | the seasonal movement of animals from one place to another for feeding or breeding (such as many birds and whales) |
| Hibernation | to spend the winter in a deep sleep; examples of animals that hibernate include bears, groundhogs, woodchucks, snakes, and frogs |
| Camouflage | a disguise or false appearance that helps an animal blend in with its surroundings (such as a pattern on frogs) |