Science, asked by isingh0008, 5 hours ago

What is double circulation ? Why is it found in birds and mammals and not fish?​

Answers

Answered by yuvraj6789
2

Answer:

It is found in mammals and birds but not in fishes because they are warm blooded and require more energy to maintain their body temperature. This will be fulfilled by more oxygen that will be supplied by double circulation.

Explanation:

hope it will be help you

Answered by adi71510
1
It is found in mammals and birds but not in fishes because they are warm blooded and require more energy to maintain their body temperature. This will be fulfilled by more oxygen that will be supplied by double circulation.
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