The pH of blood is regulated so that it is

A. exactly 7.0.
B. 6.65-6.75.
C. 7.35-7.45.


Answer: C

Anatomy & Physiology

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The opening and closing of the heart valves is caused by

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which muscle flexes, adducts and medially rotates the humerus?

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The human genome consists of approximately 3.2 billion base pairs. Protein-coding genes represent ________ of the total genome.

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