| A | B |
| cell | smallest unit that can perform all life processes |
| Stimulus | Anything that causes a reaction or change in an organism |
| homeostasis | maintenance of constant internal state in changing environment |
| sexual reproduction | sex cells of two parent unite |
| asexual reproduction | one parent produces offspring identical to itself |
| heredity | passing of traits from parent to offspring |
| metabolism | sum of all chemical processes that occur |
| producer | organism that can make its own food from sun energy |
| consumer | organism that eats other organsims |
| decomposer | organism that gets energy by breaking down the remains of dead organisms |
| protein | molecule needed to build and repair body structure |
| carbohydrates | food nutrient for energy for life activities |
| lipid | biochemical that does not diisolve in water |
| ATP | main energy source for cell processes |
| nucleic acid | very large molecule of C, H, O and P |
| autotroph | organism that makes its own food |
| absorption | usable materials taken into the cell |
| ingestion | taking in food from the environment |
| excretion | removal of waste produced by cell activites |
| egestion | removal of undigested materials from the body |
| growth | increase in size |
| transport | life process involved with circulation and absorption of nutrients |
| respiration | chemcial reactions that releases energy for life |
| synthesis | producing complex substances from simple |
| nutrition | life process by which organisms obtain and process food |