Multiple choice

In which organism is the pulmonary circuit of blood circulation absent?

  1. Frog

  2. Pigeon

  3. Fish

  4. Lizard

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Fishes has a single systemic circuit for blood. Pulmonary circuit is absent in fishes. The heart pumps the blood to the gills in order to get it reoxygenated.