Across
- 2. Class that contains animals with more than one pair of antennae
- 5. Class that contains animals with one pair of antennae
- 6. Type of body plant that has a digestive system with one opening
- 12. Phylum that is the most abundant of the animal phyla
- 15. Class that contains two pairs of legs per body segment
- 18. Phylum that contains tentacles and a soft body
- 19. Phylum that contains asymmetrical animals such as sponges
- 20. Class of arthropods that does not contain antennae
- 21. Class that contains jawless vertebrates
- 22. Scientific term for a group or classification level
Down
- 1. Type of animal without a backbone
- 3. Phylum that contains organisms with bilateral symmetry and segmentation
- 4. Phylum that contains starfish (bony skeleton)
- 7. Phylum characterized by muscular foot, mantle, and shell
- 8. Class that is characterized by the presence of hair
- 9. Class that contains one pair of legs per body segment
- 10. Class that includes sharks, rays, and skates with a cartilaginous skeleton
- 11. Phylum that contains animals with flattened bodies (no segments)
- 13. Class that requires moist habitats, but can also live partially on land
- 14. Type of symmetry found in sea cucumbers and sea urchins
- 16. Class that contains scales and leathery eggs
- 17. Type of skeleton that provides an extra layer of protection on the outside of the animal