Across
- 5. killing for commercial use
- 6. birth in egg
- 7. almost extinct
- 9. the streets, uber eats of cell
- 11. live birth
- 12. has scales, cold-blooded
- 14. the brain containing the DNA
- 16. destroys crops,
- 17. having hair and warmblooded
- 19. has soft body with shell
- 20. a crab, rolie poliy
Down
- 1. the jellylike substance
- 2. barrel shaped structure
- 3. sea urchin and starfish
- 4. segmented invertebrate
- 8. means double life
- 10. with a backbone
- 13. has 3 main body parts
- 15. membrane allows things in/out
- 18. the powerhouse