Question

Why does a birds heart work better than a frogs?

Answer 1

hello friend.... here you go.....
>>>>>>In the ventricle deoxygenated and oxygenated blood are mixed before being pumped out of the heart. ... Mammals and birds, however, have ahigher metabolic rate so must have a way of delivering more oxygen per litre of blood to the body than amphibians. The avian heart is more like the mammalian heart with four chambers....hope this will help

Answer 2

So a heart with three chambers is ideal for the needs of amphibians whocould also absorb oxygen through their skin when moist. Mammals and birds, however, have a higher metabolic rate so must have a way of delivering moreoxygen per litre of blood to the bodythan amphibians.