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Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by
(a) Labeo, Chameleon, Salamander
(b) Hippocampus, Exocoetus, Anabas
(c) Hyla, Rana, Draco
(d) Whale, Dolphin, Turtle
Answers (1)
Ans.(b)
Animal group Heart Examples
Amphibians and Reptiles 3-chambered heart Salamander, Hyla,
(two atria and one ventricle) Rana (Amphibians)
Chameleon,
Draco, Turtle
Fishes 2-chambered heart Hippocampus,
(one atrium and Labeo, Anabas,
one ventricle) Exocoetus etc.
Birds and mammals 4-chambered heart Pigeon, parrot,
(two atria and whale, dolphins,
two ventricle) humans
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