Which of the following is NOT an advantage for birds and mammals having a four-chambered heart?

Question

Accepted Answer

It allows the blood to flow directly from the lungs to the organs and extremities.

Answer

It allows for high and different pressures in the systemic and pulmonary circuits.

Answer

It allows for complete separation of oxygenated and deoxygenated blood.

Answer

It allows for complete separation of systemic and pulmonary circulation.

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