| A | B |
|---|
| organization | a high degree of order in an organism |
| biology | the study of life |
| unicellular | a single-celled organism |
| multicellular | an organism composed of more than one cell |
| cell | the basic unit of structure and function in all organisms |
| homeostasis | maintaining a stable internal environment |
| reproduction | the sexual or asexual process by which organisms generate new individuals of the same kind |
| gene | DNA that contains the information for a trait |
| biological molecule | chemical compounds that provide structure, movement, energy use, etc. in cells |
| metabolism | sum of all chemical processes in an organism |
| development | process by which an organism matures |
| observation | using the senses to perceive the natural world |
| hypothesis | a testable proposed explanation for how the natural world works |
| prediction | a statement that forecasts what would happen if the hypothesis is true |
| experiment | testing a hypothesis |
| control group | the comparison group in a controlled experiment |
| experimental group | the group that is identical to the control group except for one factor |
| independent variable | the variable manipulated by the experimenter |
| dependent variable | the measured or responding variable |
| theory | a widely accepted idea supported by a large amount of evidence |
| peer review | experts in the field anonymously read and critique other scientists' research |
