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1. A doctor who treats patients with heart diseases is known as/an

  • A. nephrologists
  • B. nephrologists
  • C. nephrologists
  • D. nephrologists

Answer: Option B

Explanation:

We know that the suffix -ologist refers to someone who studies some area. To that, we add cardio-, which comes from the Greek kardia, meaning "heart," and we get "someone who studies the heart." The actual study of the heart is called cardiology.

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