| A | B |
|---|
| classification | the arrangement of things in groups of similar items |
| kingdom | the largest group into which living things can be classified |
| moneran | the kingdom of classification for organisms that have only one cell and no nucleus |
| protist | the kingdom of classification in which members often have traits of both plants and animals |
| fungi | living things that cannot make their own food, but take in nutrients from the environment |
| genus | the second-smallest name grouping used in classification, the first part of an organism's scientific name |
| species | the smallest name grouping used in classification, the second part of an organism's scientific name |
| vertebrates | animals with a backbone |
| mammals | animals that have hair and produce milk for their young |
| reptiles | animals that have dry, scaly skin |
| amphibians | animals that have moist skin and no scales |
| fish | vertebrates that live their entire lives in water |
| birds | vertebrates with feathers |
| invertebrates | animals without a backbone |
| Linnaean system | a classification system useful for storing and finding information about living things |
| Animalia | the name of the kingdom made up of animals |
| Plantae | the name of the kingdom made up of plants |
| adaptation | a structure or feature of an organism that helps it meet a particular need in its natural habitat |
| dichotomous key | a guide used to identify an organism based on its characteristics. |
