| A | B |
| Tissue | Cells that perform the same function |
| Muscle | Tissue that can contract |
| Epithelial tissue | Lines the stomach |
| Homeostasis | Keeps an organism's internal environment stable |
| Joints | Ball and socket, Pivot, Gliding, Hinge, Fixed |
| Ball and Socket joint | Greatest range of motion |
| Types of Muscle | Skeletal, Smooth, Cardiac |
| Hinge joint | Moves forward and backward |
| Cardiac muscle | Found only in the heart |
| Skeletal muscle | Reacts quickly, tires quickly |
| Smooth muscle | Reacts slowly, tires slowly |
| Pairs of muscles work beacause | One muscle contracts while the other returns to original length |
| Skeletal muscles | Can only contract |
| Skin | Regulates body temperature by letting excess heat leave the body |
| Nucleus | Directs the activities of a cell |
| Feeling hungry | One of the ways a person's body maintains homeostasis |
| Stress | Caused by threat, challenge or disturbing events |
| Cartilage | Connective tissue more flexible than bone |
| Baby's bodies are | Composed mostly of cartilage |
| Organ structure | Related to the function of the organ |
| Involuntary muscle | Controls digestion |
| Skin protects body | By keeping disease-causing microorganisms out |
| Acne (pimples) prevented | By washing skin |
| Drinking water | Replaces water lost through perspiration |