Eighty percent of human skeletal mass is made up of

a. cancellous bone.
b. cortical bone.
c. spongy bone.
d. trabecular bone.

b. cortical bone.

Health Professions

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The metabolism of calcium ions is coordinated by the parathyroid hormone and:

A. vitamin B12 B. vitamin K C. thymosin D. calcitonin

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Markup divided by cost, multiplied by 100%, equals markup rate. If a medication costs $93.25 and the selling price is $113.98, what is the markup rate?

A. 12% B. 22% C. 23% D. 25%

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