Hormones
a. are all of similar chemical composition.
b. combine with specific receptors on the target cell's surface or inside the target cell.
c. are secreted at a constant rate.
d. are also known as paracrines
e. all of these answers.
B
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The ________ is the volume of blood in a ventricle at the beginning of systole
A) ejection fraction B) end-diastole volume C) asystolic volume D) end-systolic volume E) stroke volume
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A) a minor essential element. B) a dietary supplement with no natural role in the body. C) a major essential element. D) None of the answers are correct.
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