Across
- 2. at the producer level of an energy pyramid there are 50,00 KCAL. How many KCAL would be at the tertiary level?
- 4. protects from UV rays
- 5. cells working together form
- 9. a protein that speeds up chemical reactions
- 11. considered the highway of body systems, cause it delivers
- 12. combining organ systems would create this
- 13. another word for eat
- 15. the waste product for this body system is carbon dioxide
- 16. breaks food down by grinding or churning
- 18. this ecosystem would consist of whales and phytoplankton
- 19. grape-like sacs, gas exchange occurs here
- 20. finger-like projects in small intestines allows for nutrients to be absorbed
Down
- 1. another word for job or purpose
- 3. this system removes waste products from the body
- 6. from the mouth food passes through this organ
- 7. system is the first line of defense versus injury and infection
- 8. pumps blood out of the heart and lungs
- 10. contracts and relaxes move air through the body
- 14. the windpipe of the body
- 17. form of digestions that breaks food down into smaller molecules