| A | B |
|---|
| Animalia | A major classification group; the kingdom that contains all animals |
| Aristotle | Greek philosopher who classified animals into three main groups |
| cell | The smallest unit in which all of the life processes can be carried on |
| class | A group of closely related orders |
| classification | The grouping or arranging of things according to a system |
| family | A group of closely related genera |
| field guide | A book that contains facts about identifying certain groups of things |
| field marks | The arrows in a field guide that highlight important physical characteristics |
| Fungi | A major classification group; the kingdom that contains living things that are not green and do not make their own food |
| genus | A group of closely related species |
| kingdom | The largest classification division; consists of several related phyla |
| Carolus Linnaeus | Swedish scientist that developed a classification system similar to the modern classification system |
| Monera | A major classification group; the kingdom that contains living things that are made up of a single cell that lacks a nucleus |
| nucleus | The organelle that controls a cell’s activities; contains substances that regulate the cell's functions |
| order | A group of closely related families |
| phylum | A group of closely related classes |
| Plantae | A major classification group; the kingdom that contains all plants |
| Protista | A major classification group; the kingdom that contains living things that are made up of a single cell that has a nucleus and may have both animal and plant traits |
| species | A group of living things that can mate with each other and whose offspring can also mate and reproduce |
| taxonomic key | A guide to identifying living things based on certain traits and made up of paired statements |
| taxonomy | The science of classifying things |
