The incompletely divided ventricle of reptiles is sometimes portrayed as an evolutionary transition between the heart of primitive amphibians and the completely divided ventricles of birds and mammals. Do you agree with this portrayal? Why or why not?
Yes. I agree with the statement that
'The incompletely divided ventricle of reptiles is sometimes
portrayed as an evolutionary transition between the heart of
primitive amphibians and the completely divided ventricles of birds
and mammals.'
Explanation:
There is a single undivided ventricle present in amphibians and
reptiles. On the other hand, birds and mammals contain full
ventricular septum. Birds are mammals are endotherms and exhibit
high rates of metabolism compared to ectotherms. Their heart rate
is also several folds higher.
The undivided ventricle is a transition towards better
respiratory/circulatory system.
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