Answer:
amphibians and humans like this in common. A number of heart chambers. Be a complete separation of circuits. The number of circuits or a low blood pressure in the systemic circuit. Also the answer is c both amphibians and mammals have to circuits the pulmonary and be systemic. So in the human heart these are completely separate. You have four heart chambers and you only ever see the blood in the atrium and right ventricle as being deoxygenated.
Explanation:
So this is complete separation. But amphibians don't have this, they don't have these and that's because they only have three hearts changers
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