| A | B |
|---|
| organism | something that helps an organism survive in its environment |
| reproduction | smallest classification-fewest organisms |
| stimulus | a system used to group ideas, |
| adaptation | a living thing |
| classification | class is divided into this |
| kingdom | mammal, fish, bird, reptile, etc |
| genus | families are divided into this |
| species | an organism making more of its own kind |
| order | class is separated into this |
| family | a change that produces a response |
| class | most general classification |
