| A | B |
|---|
| Dynamic Equilibrium | The constant small corrections that normally occur to keep an organism's internal environment within the limits needed for survival |
| Enzyme | Proteins that speed up the rate of chemical reactions in living things |
| Feedback Mechanism | A cycle in which the output of a system either modifies or reinforces the first action taken by the system |
| Fungi | Heterotrohic, multicellular organisms |
| Gas exchange | The process of obtaining oxygen from the environment and releasing carbon dioxide |
| Glucose | A sugar that is a major source of energy for cells |
| Guard cells | Specialized cells that control the opening and closing of the pores on a leaf |
| Homeostasis | The ability to maintain a stable internal environment |
| Immune system | The bodies primary defense against disease causing pathogens |
| Insulin | A hormone that prompts glucose to move from the blood into body cells which causes a decrease in glucose levels in the blood |
