Moderate

Who first discovered how blood circulates in the human body?

Correct answer: C. William Harvey

  • A. Edward Jenner
  • B. Joseph Lister
  • C. William Harvey
  • D. Gregor Mendel

Explanation

William Harvey described the circulation of blood through the heart and blood vessels in the seventeenth century. Jenner is associated with vaccination, Lister with antiseptic surgery, and Mendel with genetics.

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The human body is studied through its organ systems, including digestion, respiration, circulation, excretion, nervous coordination, reproduction and immunity. Coverage also includes nutrients and deficiency diseases, hormones, blood groups, common infections, vaccines, sanitation and basic first aid, while distinguishing communicable diseases from inherited and lifestyle disorders.

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