The brain's pineal gland produces the light-responsive hormone called :

The brain's pineal gland produces the light-responsive hormone called
 
  A) adrenaline.
  B) melatonin.
  C) insulin.
  D) estrogen.

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Dreaming occurs during which of the following stages of sleep?
 
  A) stage two
  B) stage three
  C) stage four
  D) stage five

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The hypothalamus and pineal gland are both contained within which structure of the brain?
 
  A) the pons
  B) the diencephalon
  C) the cerebrum
  D) the brain stem

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REM sleep is prompted by which structure of the brain?
 
  A) the brain stem
  B) the hypothalamus
  C) the pons
  D) the pineal gland

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During which stage of sleep does the pituitary gland produce growth hormone to facilitate repair of the body?
 
  A) stage one
  B) stage three
  C) stage four
  D) stage five