Extra Credit Unit 2 Test

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Across
  1. 3. protects the body from germs
  2. 6. the body’s ability to keep the internal balance of the body stable
  3. 8. change which alters matter without changing its chemical composition or the identity of the substance
  4. 12. controls and coordinates the body
  5. 13. a thing or event that causes a response or reaction
  6. 14. removes waste from the body
  7. 15. provides movement of the body
  8. 16. transports nutrients and oxygen to the body
Down
  1. 1. the formation of a new substance with different properties; cannot be undone by physical means
  2. 2. breaks down food to provide nutrients and energy
  3. 4. regulates the body with hormones
  4. 5. exchanges oxygen and carbon dioxide
  5. 7. a group of organs working together
  6. 9. provides protection of the body
  7. 10. an organism's reaction to a stimulus
  8. 11. provides structure and protection for the body