biology

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Across
  1. 3. opening at center of iris
  2. 6. regulation of water in the body
  3. 9. they stay for weeks and affect the organs
  4. 11. regulation of the body's internal conditions
  5. 12. allows your body to use glucose for energy
  6. 13. allows you to hear
  7. 14. the thing that happens after effector
Down
  1. 1. what are the balls that carry information across the synapse
  2. 2. transparent part of the eye
  3. 4. when the plant grows toward light
  4. 5. makes your heart beat faster and your lungs more efficient
  5. 7. when the plant grows toward or away from gravity
  6. 8. the neurone that carries electrical impulses from the CNS to effectors
  7. 10. the neurone that detects stimulus
  8. 15. a change in environment of organism