| A | B |
| vertebrate | has a backbone |
| invertebrate | does not have a backbone |
| molt | arthropods shed their old exoskeleton |
| sponge | looks like a plant, body has holes, skeleton is spiky fibers |
| corals, jellyfish, hydras | tentacles catch food |
| worms | tube shaped, land and water, grouped by body design |
| starfish and sea urchins | tiny tube feet, spiny body |
| mollusk | soft body, hard shell, rough tongues, muscular foot |
| arthropods | jointed legs, hard exoskeleton, molts |
| fish | live in water, get oxygen through gills, cold blooded |
| amphibian | land and water, grow legs and lose gills, cold blooded |
| reptile | scaly skin, cold blooded, leathery eggs |
| mammal | give birth to live young, hair and fur |
| bird | eggs have an outer shell, feathers |
| animal | many celed, structures for moving, feed on other organisms |
| plant | many celled, no structures for moving, make their own food |
| fungus | many celled, some one celled, absorb food from other organisms |
| protist | most one celled, can make their own food or feed on other organisms |
| moneran | very simple celled, some make their own food and some feed on other organisms |