| A | B |
|---|
| Adaptation | A change that helps an organism survive and reproduce in its habitat. |
| Habitat | Place where an organism lives and reproduces. |
| Advantage | A benefit. (ex: eg. Good eyesight that improves the chances of survival.) |
| Amphibians | Animals that are born in water, but can also live on land (ex: frogs) |
| Anatomy | The structure of a living thing, or how it is made. |
| Ancestor | Someone you are descended from. (ex: parents, grandparents, great-grandparents) |
| Ancient | Very old; from a long time ago. |
| Behavior | How you act. |
| Charles Darwin | Father of evolution |
| Decay | Rot and break down. |
| Descended | Came down; came from |
| Develop | Form over time |
| Ensure | To make certain |
| Disappearing Trait | A characteristic that is being lost over time. (ex: human tailbone) |
| Fossil | The preserved parts of organisms that lived a long time ago. |
| Gene | Traits passed from parents to children |
| Evidence | Information and facts you can use to support a hypothesis. |
| Adapt | change to fit a situation. |
