Class II

How long is your large intestine?
  1. 6-8 metres
  2. 1.5 metres
  3. The size of a football field
  4. 50 cm
What happens to the brain after a night of heavy drinking?
  1. The brain become dehydrated and shrinks away from the skull
  2. The brain swells, causing a splitting headache
  3. The nerve endings in the base of the brain become inflamed
  4. Brain activity increases and the surfeit of thoughts causes a headache
In which parts of the body are cells not replaced when they die?
  1. Kidneys
  2. Muscles
  3. Skin
  4. Brain
For a fertile couple under 30, what is the chance of conceiving each month after unprotected sex?
  1. 50%
  2. 25%
  3. 10%
  4. 5%
Melatonin, which has a role in maintaining our circadian rhythm, is inhibited by which of the following?
  1. Sexual activity
  2. Alcohol
  3. Light
  4. Darkness
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