________ is a fine, unpigmented, downy hair that first appears on the fetus in the last trimester of development.
Fill in the blank(s) with the appropriate word(s).
Lanugo
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The advantage of having many nuclei in a skeletal muscle fiber is the ability to
A) contract much more forcefully. B) produce more ATP with little oxygen. C) store extra DNA for metabolism. D) produce large amounts of muscle proteins. E) produce nutrients for muscle contraction.
________ involves a cascade of reactions leading to the conversion of fibrinogen to fibrin
A) Vascular spasm B) The platelet phase C) Retraction D) Coagulation E) Fibrinolysis
Which of the following has the lowest partial pressure in inhaled dry air?
A) oxygen B) nitrogen C) water vapor D) carbon dioxide E) mercury
In order for relaxation to occur, ACh must be removed from the muscle cell's receptors
Indicate whether the statement is true or false