Across
- 3. Study of the entire animal kingdom
- 4. Spiny Skin
- 10. Segmented Advanced worms
- 11. Simplest Animals
- 13. eats plant and animal remains
- 14. Body forms medusa and polyp
- 15. Internal Skeleton
Down
- 1. Zoology subset
- 2. only eats plants
- 5. Exoskeletons made of chitin
- 6. Unsegmented round worms
- 7. eats meat and plants
- 8. Unsegmented soft bodies some include shells
- 9. only eats meat
- 12. Unsegmented or flat worms