Across
- 2. a group of bones that give structure and support to an organism's body
- 4. system that gets oxygen into the body; gets rid of carbon dioxide
- 7. bass is an example of this
- 9. having a body temperature that remains about the same
- 10. a coldblooded vertebrate that lives part of its life in water and part on land
- 12. system that moves the body
- 13. system that breaks down food into nutrients for the body
- 14. having a body temperature that changes with the temperature of the surroundings
- 15. organs used for getting oxygen from water
- 16. a coldblooded vertebrate that breathes air with lungs and has scaly skin
Down
- 1. system that moves nutrients and gases throughout the body in blood
- 3. a strong but flexible support rod found below the nerve chord
- 5. system that supports the body and protects organs
- 6. system that makes offspring
- 8. organism that has a notochord at some stage of development
- 11. strong, flexible connective tissue