Across
- 2. it is covered by a hard, white layer called the enamel
- 4. in which type of animal canines are very sharp and long
- 6. food changes into ball like mass called
- 7. which animals have heterodant teeth
- 8. in the mouth ,food is first chewed and broken into small pieces this is called.
Down
- 1. food pipe is called
- 3. nutrition in humans is (they ingest solid food)
- 5. it is the process of elimination of undigested matter in the form of faeces