Across
- 2. white substance that covers your teeth
- 4. has stiff hair-like structures called cilia all over its body
- 5. chewing food to break it into small pieces
- 9. saliva is produced here
Down
- 1. other name for food pipe
- 3. false feet of ameoba
- 6. plant-eating animals that digest their food in two steps
- 7. small projections in the inner walls of the small intestine that help in absorption of digested food
- 8. the process of elimination of undigested solid parts of the food