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6. alcohol is a recreational drug. Which one of the following is an effect of alcohol on the cardiovascular system?

  • Alcohol lowers blood pressure
  • Alcohol increases blood pressure
  • Alcohol decreases lung volume
  • Alcohol increases oxygen debt

7. Diet is an important consideration in a healthy, active lifestyle. Which one of the following correctly identifies the role of fibre in the diet?

  • Aids digestion
  • Increases strength of bones
  • Is an energy source
  • Prevents dehydration