Rayna's Crossword puzzle Title

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Across
  1. 3. nervous system sensory and motor nerves
  2. 6. makes body respond
  3. 10. nerves- system brain and spine
  4. 11. replaces lining of the uterus
  5. 12. blood sugar
  6. 15. sperm joins an egg
  7. 16. nervous system automatic
Down
  1. 1. growth metabolism
  2. 2. fights infection
  3. 4. makes hormones
  4. 5. nervous system you decide to control
  5. 7. embryo attaches to uterus
  6. 8. baby in the womb
  7. 9. ball of cells
  8. 13. nerve cell in brain
  9. 14. chemical made to function in a different area