Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following:
A. hyla, rana, draco
B. whale, dolphin, turtle
C. labeo, chameleon, salamander
D. hippocampus, exocoetus, anabas
Answer:D
Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following:
A. hyla, rana, draco B. whale, dolphin, turtle C. labeo, chameleon, salamander D. hippocampus, exocoetus, anabas