Multiple choice

In which animal we see double circulation ?

  1. Fish

  2. Octopus

  3. Monkey

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

Double circulation is a characteristic of mammals, birds, and some reptiles, where blood passes through the heart twice during one complete cycle. Monkeys, being mammals, possess a four-chambered heart that supports this efficient system, unlike fish which have single circulation.

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