| A | B |
| classification | grouping things according to how they are alike |
| taxonomy | classifying living things |
| genus | group made of related species |
| kingdom | group made of related phyla |
| phylum | group made of related classes |
| species | group of organisms that look alike and can reproduce among themselves |
| fungi | plantlike organisms that lack chlorophyll, mushrooms |
| monerans | single celled organisms without a nucleus, bacteria and blue-green algae |
| protists | single celled organisms with a nucleus, paramecium or amoeba |
| bacteriophage | virus that infects bacteria |
| capsid | protein covering of a virus |
| virus | piece of nucleic acid covered with protein that can only reproduce in a cell |
| bryophytes | nonvascular plants |
| photosynthesis | process of making glucose from sunlight, Carbon dioxide and water |
| tracheophytes | vascular plants |
| endoskeleton | internal skeleton, bones |
| exoskeleton | external skeleton, shell |
| invertebrates | animals without backbones |
| vertebrates | animals with backbones |
| order | group made of related families |