birds and mammals have four chambered heart Why.?
sam23832:
according to me, in 3 chambered both oxygenated and deoxygenated blood gets mixed in ventricle. ... Due to mixing of blood ,there is decrease in efficiency of heart and so, 4 chambered heart were develod in birds and mammals for proper blood circulation.
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bBirds and animals have four chambered heart because they had to fly constantly and thus they need energy continuously.
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Birds have four chambered heart because during flight they need more energy. So, that they can fly easily without any difficulty.
Mammals have four chambered heart because heart helps to supply oxygenated blood to all parts of the body, which is important for us.
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Mammals have four chambered heart because heart helps to supply oxygenated blood to all parts of the body, which is important for us.
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