Multiple choice general knowledge science & technology

How many hearts does Octopus have?

  1. 0

  2. 1

  3. 2

  4. 3
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

An octopus has three hearts - two branchial hearts that pump blood through the gills, and one systemic heart that pumps blood to the rest of the body. This unique circulatory system supports their active lifestyle and ability to camouflage. Options A, B, and C are incorrect.

Keep practicing — related questions