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Biology
HNNNG
| Question | Answer |
|---|---|
| system that provides movement for the body | Muscular, or skeletal |
| primary defense against disease-causing microorganisms | IMMUNE SYSTEM |
| System that exchanges oxygen and carbon dioxide with the environment | Respiratory system |
| internal transportation system for blood and nutrients | Circulatory system |
| breaks down food and absorbs nutrients | digestive system |
| protects organs, stores nutrients, allows movement | skeletal system |
| system that consists primarily of the skin | integumentary system |
| receives and relays information and responds to changes | nervous system |
| bone structure that makes new blood cells | bone marrow |
| Protein on the surface of cells that alerts immune system of invading cells | antigens |