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- 1. Multiple Choice
We use our respiratory system when we.......
eat
digest
breathe
- 2. Multiple Choice
We need.......... in our body.
carbon dioxide
oxygen
gas
- 3. Multiple Choice
In the.............,the oxygen from the air goes into our blood.
stomach
lungs
liver
- 4. Multiple Choice
Our........... pumps blood around the body.
lungs
diaphragm
heart
- 5. Multiple Choice
When we breathe, the diaphragm goes up and pushes........out of our lungs.
oxygen
carbon dioxide
gas
- 6. Multiple Choice
We have two............ .
hearts
lungs
stomachs
- 7. Multiple Choice
It is the center of our face?
nose
eyes
ears
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