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Question
Double circulation does not take place in _________.
Double circulation does not take place in _________.
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Solution
The correct option is C Fishes
In double circulation, blood flows through the heart twice and provides constant energy to the organism to maintain its body temperature. E.g. Birds and mammals. Fishes have only two chambers in their hearts, and the blood pumped to the gills, is oxygenated there, and passes the oxygenated blood directly to the rest of the body. Thus, blood goes only once through the heart in fishes.So, the correct answer is option D.
In double circulation, blood flows through the heart twice and provides constant energy to the organism to maintain its body temperature. E.g. Birds and mammals.
Fishes have only two chambers in their hearts, and the blood pumped to the gills, is oxygenated there, and passes the oxygenated blood directly to the rest of the body. Thus, blood goes only once through the heart in fishes.
So, the correct answer is option D.
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