| A | B |
| Basic Needs | Food, water, air, and shelter that an organism needs to survive |
| Adaptation | A body part or behavior that helps an organism survive |
| Instinct | A behavior that an animal is born with |
| Hibernation | An inactive state in which normal body activities such as breathing and heart rate slow |
| Migration | The movement of animals from one region to another and back |
| Learned Behavior | A behavior that an animal is NOT born with |
| Fossil | The remains or traces of a plant or animal that lived long ago |
| Extinction | The death of all the members of a certain organism |