Animal Systems

4. The _________ system helps to transport digested food to all parts of the body.
7. When we exhale, our diaphragm moves ________.
8. The main function of the respiratory system is for the __________ of gases with the surroundings.
11. Which is the main organ in the circulatory system?
12. Which system supports the body and gives it shape?
14. The _________ system is responsible for breaking down food into simpler substances.

1. Digestion begins in the _________.
2. Digestion of food is complete in the _________ intestine.
3. What are the tubes that blood flow in our body called?
5. What is one gas that is exhaled without being circulated around our body?
6. Which system allows our body to move?
9. When we inhale, our ribs move _____.
10. Which intestine is responsible for absorbing water from undigested food?
13. Respiration is the process where plants and animals break down food to produce _________.