| A | B |
| classification | the act of grouping things by using a set of rules |
| kingdoms | all living things belong to one of these five groups |
| species | the smallest group in which living things are classified |
| genus | the second smallest group in which living things are classified |
| vertebrates | animals WITH a backbone |
| invertebrates | animals WITHOUT a backbone |
| mammals | animals with hair |
| reptiles | animals with dry, scaly skin |
| amphibians | animals with moist skin with no scales |
| fish | animals that have hard scales and live in water |
| vascular | plants with tubes in their roots, stems, and leaves |
| nonvascular | plants that do not have tubes and pass water and nutrients directly from cell to cell |
| snail | this is an example of a MOLLUSK |
| riverbeds | these are good homes for nonvascular plants |
| bacteria | these organisms only have one cell and NO nucleus |
| sharp senses & large brains | these are traits that mammals have |
| moss | these is an example of a nonvascular plant |
| fungi | this organism has many cells and gets its food from other living things |
| protists | these organisms have only ONE cell, but they do have a nucleus |