| A | B |
| Rids the body of nitrogen-containing wastes | Urinary System |
| Is affected by removal of the thyroid gland | Endocrine System |
| Provides support and levers on which the muscular system can act | Skeletal System |
| Includes the heart | Cardiovascular System |
| Protects underlying organs from drying out and mechanical damage | Integumentary System |
| Protects the body; destroys bacteria and tumor cells | Integumentary System |
| Breaks down foods into small particles that can be absorbed | Digestive System |
| Removes carbon dioxide from the blood | Respiratory system |
| Delivers oxygen and nutrients to the body tissue | Cardiovascular System |
| Moves the limbs; allows facial expression | Muscular System |
| Conserves body water or eliminates excesses | Urinary System |
| Provides for conception and childbearing | Reproductive System |
| Controls the body with chemicals called hormones | Endocrine System |
| Is damaged when you cut your finger or get severe sunburn | Integumentary System |