Biology 5

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Across
  1. 4. stored in the liver and the muscles. provides the body with a source of energy if blood glucose levels decrease.
  2. 5. when a part of a plant grows towards or away fro gravity
  3. 6. allows light to enter the inside of the eye
  4. 8. A nerve fibre connecting the eyes to the brain
  5. 9. when a part of a plant grows towards or away from the direction which light is coming.
  6. 10. hormone created in the pancreas that controls the amount of glucose in the bloodstream.
  7. 13. carries nerve impulses away from the cell body
Down
  1. 1. extensions of a nerve cell that
  2. 2. detects light and depth of the refracted light
  3. 3. chemical substance, produced by a gland and carried in the bloodstream, which alters the activity of specific target organs.
  4. 7. know as the "master gland"
  5. 11. cell that carry information messages or signals to and from the brain and the rest of the body
  6. 12. when the muscles around the blood vessels become more tight to make the space inside smaller.