Biology Final Xword

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Across
  1. 2. one of the main layers of skin
  2. 5. system that has hormones
  3. 8. protects the brain
  4. 9. group of cells that perform a specific function
  5. 12. sensory receptor that regulates temperature
  6. 14. performs the function of the kidney
  7. 16. gland in the endocrine system
  8. 17. where digestion begins
Down
  1. 1. cells that transmit electrical signals
  2. 3. number of food groups in food pyramid
  3. 4. losing of body fluids
  4. 6. fertilized egg
  5. 7. provides nutrients to the fetus
  6. 10. keeping same temperature regardless of conditions
  7. 11. basic time that menstrual cycle lasts
  8. 12. needed for the production of sperm
  9. 13. number of organ systems in the human body
  10. 15. main organs of the excretory system