| A | B |
|---|
| spontaneous generation | theory that states that living things come from nonliving things |
| Francesco Redi | scientist who disproved the theory of spontaneous generation |
| cells | basic unit of structure and function of living things |
| metabolism | all the chemical activities that take place in a living thing |
| ingestion | eating;taking in food |
| digestion | breaking down food |
| respiration | combining food with oxygen to release energy |
| excretion | getting rid of wastes |
| lifespan | maximum amount of time an organism lives |
| stimulus | signal; change in the environment |
| response | reaction; movement |
| reproduction | making more of one's kind |
| asexual | reproduction involving one parent |
| sexual | reproduction involving two parents/reproductive cells |
| unicellular | organisms made up of only one cell |
| multicellular | organisms made up of many cells |
