Across
- 2. Jaw characteristic of a crododile.
- 5. The type of symmetry do most arthropods have.
- 6. The body direction meaning 'towards the belly'.
- 7. Jaw characteristic of an alligator.
- 9. All animals are this.
- 11. Which phylum would animals with jointed legs belong to?
- 12. The phylum that earthworms belong to.
- 14. Being farther away from this allowed reptiles to get more food and grow bigger.
- 15. Body temperature determined by outside temperatures.
- 19. How most annelids breathe.
- 20. What the sensory organs of a roundworm cannot sense.
Down
- 1. A concentration of nervous tissue in one end of the body, forming a head and brain
- 3. Which body direction term means ‘towards the back’?
- 4. An organism that consumes dead or decaying organic matter
- 8. Body temperature maintained by internal metabolism.
- 10. A feeding structure made of tiny teeth that scrapes food
- 13. Many of these animals have a calcium carbonate shell.
- 16. Protects the nematode from extreme conditions and a host’s immune system
- 17. Body direction meaning 'toward the middle'.
- 18. This fin propels fish forward.