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Question
Single circulation i.e. blood flows through the heart only once during one cycle of passage through the body, is exhibited by
Options
Labeo, Chameleon, Salamander
Hippocampus, Exocoetus, Anabas
Hyla, Rana, Draco
Whale, Dolphin, Turtle
Solution
Hippocampus, Exocoetus, Anabas
Explanation -
In Option a) Chameleon is a reptile and Salamander is an amphibian which has 3 chambered hearts and shows partial double circulation. In Option c) all are Amphibians and they show partial double circulation. In option d) Whale is a mammal but turtle is a reptile hence option d) is wrong.
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