Respiratory System

3. a ring-like muscular tube that acts as the passageway for air, food and liquid; throat.
4. The ability to make things move or change
6. a muscle located just below the lungs.
9. a substance that is changed during a chemical reaction.
10. small air sacs through which oxygen enters the capillaries.
11. Part of the body where food and air enter.
13. Part of the body where air enters.
14. A molecule made of carbon and oxygen atoms.
15. the hollow muscular organ forming an air passage to the lungs and holding the vocal cords; the voice box.

1. Molecule that organisms get from the air or water around them and use to release energy.
2. two short tubes through which air enters the lungs.
3. what is formed is when two or more chemicals react
5. each of the pair of organs situated within the rib cage, so that oxygen can pass into the blood and carbon dioxide be removed.
7. An organelle in the cell where cellular respiration takes place.
8. A molecule that organisms can use to release energy, and that is made of carbon, hydrogen, and oxygen atoms.
12. tiny hairs that line the air passage in the nose.