| A | B |
|---|
| homeostasis | tendency of an organism or a cell to maintain internal equilibrium |
| stimulus | causes an organism to react |
| response | how an organism reacts to a stimulus |
| organization of organisms | cells > tissues> organs> organ systems > organisms |
| development | marked stages of an organisms life span |
| cells | smallest unit of life |
| prokaryote cell | cells without a nucleus or membrane bound organelles, ex. bacteria |
| eukaryote cell | cells with a nucleus and membrane bound organelles, ex. plant or animal |
| unicellular | single celled, ex.bacteria |
| multicellular | organisms with more than one cell, ex. plant |
| growth | increase in the amount of cells and formation of structures |
| evolve | how an organism changes through time |
| mutualism | both organisms benefit that live together |
| parasitism | one organism benefits at the cost of the other organism |
| species | organisms that are so similar they can produce fertile offspring |
| sexual reproduction | reproduction between two organism that varies the DNA |
| asexual reproduction | reproduction involving a single parent, does not vary DNA |
