| A | B |
| biology (1.1) | the study of living things |
| cancer (1.2) | disorder caused by uncontrolled cell division |
| cell (1.1) | the smallest structural unit capable of life |
| control group (1.3) | receives no experimental treatment |
| cystic fibrosis (1.2) | a fatal disorder caused by a defective gene and resulting in the excretion of excessive amounts of mucus |
| dependent variable (1.3) | the factor that is measured in an experiment |
| ecology (1.1) | the study of the interactions of living organisms |
| evolution (1.1) | is the change in the inherited traits of a species over time |
| experiment (1.3) | planned procedure to test a hypothesis |
| gene (1.1) | sets of inherited instructions for making proteins |
| heredity (1.1) | the passing of traits from parent to offspring |
| HIV (1.2) | virus that causes AIDS |
| homeostasis (1.1) | the state of constant internal conditions |
| hypothesis (1.3) | an explanation for an observation that can be tested by additional observations or experimentation |
| independent variable (1.3) | the factor that is varied in an experiment |
| metabolism (1.1) | the sum of all of the chemical reactions carried out in an organism |
| mutation (1.1) | is a change in the DNA of a gene |
| natural selection (1.1) | the process in which organisms with favorable genes are more likely to survive |
| observation (1.3) | is the act of noting or perceiving objects or events using the senses |
| pH (1.3) | relative measure of the hydrogen ion concentration within a solution |
| prediction (1.3) | the outcome that is expected if a hypothesis is correct |
| reproduction (1.1) | the process by which organisms make more of their own kind |
| species (1.1) | a group of organisms that are genetically similar and can produce fertile offspring |
| theory (1.3) | a set of related hypotheses that have been tested and confirmed many times |