| A | B |
|---|
| classification | The act of grouping things by using a set of rules. |
| kingdom | The largest group into which living things can be classified |
| moneran | Has only one cell and has no nucleus. |
| protist | Has only one cell and has a nucleus. |
| fungi | Has many cells and have nuclei |
| genus | The second smallest group in classification |
| species | The smallest group in classification. |
| vertebrates | Animals which have a backbone |
| mammals | Have hair and produce milk for their young |
| reptiles | Have dry, scaly skin. |
| amphibians | Have moist skin and no scales, begin life in water but live on land as adults. |
| fish | Vertebrates that live their entire lives in water. |
| birds | Vertebrates with feathers. |
| invertebrates | Animals without a backbone. |
| vascular plants | Plants that have tubes. |
| nonvascular plants | Don't have tubes, water must soak into the plants and pass slowly from cell to cell. |
