Multiple choice general knowledge

William Harvey, a 17th-century English scientist, made an important contribution to biology with his:

  1. Explanation of the circulatory system

  2. Invention of the microscope

  3. Research on vaccination to immunize against disease

  4. Study of the electrical nature of nerve impulses
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A Correct answer
Explanation

William Harvey published 'De Motu Cordis' (1628) establishing the circulatory system - that blood is pumped by the heart through the body in a closed loop. This revolutionized biology and medicine. The microscope was developed by others (Hooke, Leeuwenhoek), vaccination by Jenner, and nerve impulse studies came later.

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