Male sex chromosomes are represented as ________
A) XX
B) XO
C) XY
D) YO
E) YY
C
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The end of the aorta occurs when the vessel bifurcates into the
A. brachiocephalic artery. B. subclavian arteries. C. common iliac arteries. D. common carotid arteries. E. None of these answers is correct.
The activation of additional motor units in a skeletal muscle, in order to increase muscle tension, is called motor unit recruitment.
Answer the following statement true (T) or false (F)
Which of the following statements is false?
A) A neuron cell membrane is very permeable to K+. B) Na+ is 40 times as concentrated in the ICF as in the ECF. C) The Na+/K+ pump removes 3 Na+ from the cell for every 2 K+ it pumps into the cell. D) The unequal distribution of ions across the cell membrane produces the membrane potential.
What type of exocrine gland uses exocytosis to secrete its product?
A. holocrine B. apocrine C. merocrine D. solocrine E. endocrine