| A | B |
| Environment | Everything that surrounds and affects a living thing. |
| Habitat | The place where an animal lives. |
| Community | A group of plants and animals that live in the same area. |
| Biome | The world's major communities. |
| Adaptation | The behavior or part of a living thing that helps it survive in a certain environment. |
| Food Chain | The path that energy takes as one living thing eats another. |
| Behavior | The way an animal usually acts. |
| Producer | A living thing that makes its own food. |
| Consumer | A living thing that eats plants, animals, or other living things. |
| Herbivore | An animal that eats only plants. |
| Carnivore | An animal that eats only other animals. |
| Omnivore | An animal that eats both plants and animals. |
| Decomposer | A consumer that feeds on dead things and animal droppings. |
| Predator | Animals that hunt other animals for food. |
| Prey | Animals that are hunted by predators. |
| Endangered Species | A kind of pland or animal that is so few in number it is close to extinction. |
| Extinction | The dying out of all living things of a certain kind. |
| Camouflage | The ability to blend in with the surroundings. |
| Migrate | To travel to a new place to find food. |
| Hibernate | To go into a deep sleep. |