| A | B |
| spontaneous generation | this is a theory that says that life can spring from nonliing matter |
| metabolism | all chemical activities in an organism(storing energy and releasing energy) |
| ingestion | eating or the taking in of food |
| digestion | the process where food is brokeen down into simpler substances |
| respiration | the process where living things take in oxygen and produce energy |
| excretion | the process of getting rid of waste materisls |
| life span | the MAXIMUM length of time an organism can be expected to live |
| stimulus | a signal to which an organism reacts or gives a response, could be a change in the environment |
| response | an action or movement of an organism brought on by a stimulus |
| sexual reproduction | reproduction that requires two parents |
| asexual reproduction | reproduction that only requires one parent |
| reproduction | the process by which living things give rise or produce the same type of living thing "like produces like" |
| sexual | two cells, male and female |
| asexual | one cell, divides |