Science, asked by narayana9199, 1 year ago

a) Explain how the separation of oxygenated and deoxygenated blood is useful in humans?

b) why is double circulation of blood necessary in humans?

Answers

Answered by artisingh
8
in birds and humans oxygen comes into left or right auricle,and there it goes left and right ventricle, ventricle do not mix the blood and pumped it.and two type of circulation found in mammals
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