Across
- 5. made from particles taken from killed bacteria
- 7. animal with a backbone
- 8. spend winter in dormant state
- 10. type of symmetry that humans are
- 12. can be used to limit the growth of bacteria when you are sick
- 13. regulate own body temperature
- 14. alligator is an example
- 15. system that breaks down food into smaller molecules
- 19. cold blooded
- 20. system that moves materials through the body
- 21. blend into surroundings
- 22. hawk is an example
Down
- 1. systems that transmits signals between the brain and the rest of the body
- 2. fish is an example
- 3. when animals move from one place to another during different seasons
- 4. system that supports your body with oxygen
- 6. take on the temperature of the environment
- 9. animal without a backbone
- 11. warm blooded
- 12. frog is an example
- 16. system that gives the body shape and support
- 17. dog is an example
- 18. system consists of skeletal, smooth, and cardiac muscles