Across
- 3. get oxygen and expel carbon dioxide
- 6. involuntary muscle movements in digestion
- 7. when food is changed into the nutrients
- 8. two spongy organs formed by the alveoli
Down
- 1. liquid from stomach mixed with bolus
- 2. organ that help in the digestion of proteins
- 4. way of getting nutrients our body needs
- 5. part of lungs where gas exchange take place