Across
- 1. part of eye containing rods and cones
- 3. bony growth on head of a deer
- 6. pouched mammal, opossum
- 7. flexible rod runs the length of body.
- 13. different shaped teeth, w/ different jobs
- 16. egg laying
- 18. voluntary control area of the brain
- 19. eats only plants
- 21. eats plants and animals
- 22. coiled, bony tube of inner ear
- 24. eats only insects
- 25. tooth-like scales in shark skin
- 26. eats only animals
- 28. organs that exchange O2 and CO2 in water.
- 29. shell covering back of turtle.
Down
- 2. venom that affects nerve cells.
- 4. placental mammal, dog and humans
- 5. teeth that are all the same
- 8. flap that covers gills in fish.
- 9. egg laying mammal, platypus
- 10. eggs hatch in mothers body
- 11. hair, fur, or wool covering body
- 12. keratinized cells off skull forms a point
- 14. shark tail, upper lobe larger than lower.
- 15. venom that affects blood cells
- 17. live birth
- 18. thin flexible scales of bony fish
- 20. tail with symmetrical lobes
- 23. motor skill area of the brain, hindbrain
- 27. whiskers