| A | B |
|---|
| biology | study of all living things |
| microscope | tool used to make objects look larger |
| cells | our bodies smallest unit of living matter |
| tissues | group of cells doing the same job |
| organs | group of tissues working together |
| systems | group of organs doing the same job |
| life span | amount of time living (birth-death) |
| characteristic | quality or feature of a person |
| organism | a living or once living thing |
| environment | everything around you! |
