Multiple choice general knowledge

Earthworms have ___ hearts.

  1. 1

  2. 3

  3. 5

  4. 7
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Earthworms have 5 hearts (aortic arches) that pump blood through their circulatory system. This is a well-known biological fact taught in basic science education.

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