| A | B |
|---|
| cell | smallest unit of life |
| homeostasis | ability to maintain steady internal conditions when outside conditions change |
| multicellular | made of two or more cells |
| organism | thing that has all the characteristics of life |
| unicellular | made of one cell |
| binomial nomenclature | naming system that gives each organism a two-word scientific name |
| cladogram | branched diagram that shows the relationship among organisms |
| dichotomous key | series of descriptions arranged in pairs that can be used to identify an unknown organism |
| genus | group of similar species |
| kingdom | classification category that ranks above phylum and below domain |
| species | group of organisms that have similar traits and produce fertile offspring |
| atom | building block of matter composed of protons, neutrons, and electrons |
| compound microscope | uses more than one lens to magnify an image |
| electron microscope | uses a magnetic field to focus a beam of electrons through an object or onto an object's surface |
| identify | to determine the characteristics of a person or thing |
| light microscope | uses light and lenses to enlarge an image of an object |
