| A | B |
|---|
| Behavior | way that an organism responds to its environment |
| Cellular communication | chemicals released by cells that trigger other cells to perform an action |
| Coordination | process of bringing different activities together for a specific result |
| Feedback mechanism | control system where one structure regulates another structure |
| Learned behavior | behavior that develops as a result of experience |
| Nerve cell | neuron = cells in nervous tissue |
| Nervous system | body system that regulates the body |
| Nucleus | part of the cell that controls all the other parts |
| Receptor | structure on the cell membrane that gets triggered by a chemical |
| Regulation | process that controls all cell and organismal activities |
