Choose the correct answer.
A. Animal that has two separate circulatory pathways:____

B. Difference between systolic and diastolic blood pressure:_

C. The oxygenated blood from the lungs returns into :______

[A. Shark/Whale]
[B. Mean arterial pressure/Pulse pressure]
[C. Left atrium/Right atrium]

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Solution

A. Amphibians, reptiles, mammals and birds are the classes of animals which has different chambers in the heart which leads to two separate circulatory pathways (i.e.) pulmonary and systemic circulation. Whale belongs to mammals.

B. Pulse pressure is defined as the difference between systolic and diastolic pressure. Ideally, the pulse pressure is 40mm Hg

C. During circulation, the oxygenated blood enters the left atrium of the heart from lungs.

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