| A | B |
| classify | to put things into groups |
| kingdom | the highest or most general group or organisims |
| phylum | the next level of classification below kingdom |
| class | the next level of classification below phylum |
| species | the lowest level of classification |
| Archaebacteria | Kingdom in which organisms live as single cells. Many do not need oxygen or sunlight to live. |
| Eubacteria | Kingdom in which organisms are single cells that have materials not found in archaebacteria |
| Protists | Kingdom in which organisms are single cells, but some have many cells. Algae is an example. |
| Fungi | kingdom in which organisims made of one or many cells. Mushrooms and molds are examples. |
| Plants | Kingdom in which the living thing has many cells and makes its own sugar for food. |
| Animals | Kingdom in which organisms have many cells and get their food by eating other organisms. |
| vertebrates | animals with backbones that surround the spinal cord. |
| Mammal | has hair or fur, is warmblooded, and feeds young with mother's milk |
| Reptile | has scales, is cold-blooded, and does not feed young |
| Bird | has feathers, is warm-blooded, and feeds young but not with mother's milk |
| amphibians | has soft skin, is cold-blooded, and does not feed young |
| fish | usually has scales, is cold blooded, has gills, and does not feed young |
| dinosaur | terrible lizard |
| invertebrates | animals without backbones |
| mollusk | has a soft body without bones. |
| mollusk | snails, slugs, clams, and squids are examples of this phylum. |
| arthropod | phylum which means "jointed feet." |
| arthropod | insects, lobsters, and spiders are examples of this phylum. |
| dichotomous key | Used to identify an unknown organism. |
| vascular | Means the plant has special tubes for carrying food and water to all its parts. |
| moss | A tiny leaf-like structure that is not vascular, has no seeds or flowers. |
| Fern | Has feather-like leaves, is vascular, has no seeds or flowers. |
| Conifers | A vascular plant that reproduces using cones and seeds. |
| Flowering plants | A plant that is vascular, produces seeds and flowers. |
| Conifers | has needle-like leaves |