A species that has a normal resting systolic blood pressure of >260 mm hg. what is a reasonable conclusion based on this information? question 5 options:

a. the animal that makes frequent, quick motions.

b. the animal that has a very long distance between its heart and its brain.

c. the species that has very wide-diameter veins.

d. the animal with abundant lipid storage.

e. the animal that is small and compact, without the need to pump blood very far from the heart.

Question

Yoselin Lin

Biology

14 September, 17:21

A species that has a normal resting systolic blood pressure of >260 mm hg. what is a reasonable conclusion based on this information? question 5 options:

a. the animal that makes frequent, quick motions.

b. the animal that has a very long distance between its heart and its brain.

c. the species that has very wide-diameter veins.

d. the animal with abundant lipid storage.

e. the animal that is small and compact, without the need to pump blood very far from the heart.

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Answers (1)

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Vincent Freeman · Answer 1

The answer is B. This the systolic pressure of a giraffe in comparison to that of a human that is 100 mm Hg. This high blood pressure ensures that the giraffe maintains 100 mmHg in the brain. Since a high BP impairs gas exchange and increases transpulmonary filtration, the pulmonary circulation must be separated. Therefore, in the giraffe, there is a relatively great difference between the right ventricular and left ventricular maximal rates of pressure ascent, the left ventricular rate of ascent being 5 times that calculated for the right ventricle.