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Doss [256]
3 years ago
15

Explain the cause of circulatory in frog

Biology
1 answer:
Masteriza [31]3 years ago
6 0

Answer:

In the frog, Rana, venous blood is driven into the right atrium of the heart by contraction of the sinus venosus, and it flows into the left atrium from the lungs. A wave of contraction then spreads over the whole atrium and drives blood into the ventricle, where blood from the two sources tends to remain separate.

Explanation:

hope it will help u

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