| A | B |
| Environment | Everything that surrounds and affects an animal |
| Climate | The average temperature and rainfall of an area |
| Oxygen | One of the many gases in air |
| Shelter | A place where an animal is protected from the weather |
| Metamorphosis | Process of change from an egg to an adult |
| Adaptation | Body part or behavior that helps an animal meet its needs |
| Camouflage | An animals color that helps it blend into its surroundings |
| Mimicry | An adaptation in which an animal looks like another animal or object |
| Instinct | Behavior that an animal begins life with |
| Migration | Movement of a group from one region to another and back again |
| Hibernation | A period of a long deep sleep |
| Body Covering | An adaptation that helps an animal survive |
| Talons | Claws that are adapted for catching and carrying prey |
| Hollow Bones | An adaptation that allows birds to fly |
| Molt | Shedding the outer skin |