| A | B |
|---|
| the process of change from simple to more complex | development |
| an action or change in behavior | response |
| organisms that cannot make their own food | heterotrophs |
| learning to associate different events, for example a bell with food | conditioning |
| living thing composed of many cells ( ex: human, mouse) | multicellular |
| a change in an organism’s surroundings that causes an organism to react | stimulus |
| the mistaken idea that living things arise from nonliving sources | spontaneous generation |
| the part of an experiment that can change | variable |
| living thing composed of a single cell ( ex: paramecium, amoeba | unicellular |
| organisms that make their own food | autotrophs |
| the basic unit of structure and function in living things | cell |
| maintenance of stable internal conditions | homeostasis |
