Why does running downhill tend to increase running speed?

A. increased stride length
B. increased stride frequency
C. both A and B
D. none of the above


A. increased stride length

Anatomy & Physiology

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In an arteriole, if the blood vessel radius is 2 units and is then vasoconstricted to 1 unit,

a. blood flow decreases by half b. resistance increases 16 times c. blood viscosity increases d. all of the above will occur e. only b and c occur

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Identify the gonadotropic hormone(s)

a. LH b. FSH c. Testosterone d. All of the above e. Only a and b

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Iron

A. is needed to produce hemoglobin. B. is a plasma coagulation factor. C. is the binding site for carbon dioxide on the hemoglobin molecule. D. prevents carbon monoxide from binding to hemoglobin. E. interferes with the normal function of hemoglobin.

Anatomy & Physiology

________ is a genetic blood disease.

A. Pernicious anemia B. Leukocytosis C. Aplastic anemia D. Sickle-cell disease

Anatomy & Physiology