In adults, the only site of red blood cell production and the primary site of white blood cell formation is
A) the liver.
B) the spleen.
C) the thymus.
D) red bone marrow.
E) yellow bone marrow.
Answer: D
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A synapse is a junction between two nodes of Ranvier.
Answer the following statement true (T) or false (F)
________ is a protein cofactor that is secreted by the pancreas and that allows lipases to access fats inside the bile coating.
Fill in the blank(s) with the appropriate word(s).
The innermost shell of an atom holds:
A) 6 electrons. B) 2 protons. C) 8 electrons. D) 2 electrons.
The adrenal cortex produces hormones called _______________, which:
A) catecholamines, increase the blood pressure. B) glucocorticoids, stimulate energy production. C) gonadotropin, regulate testosterone production. D) corticosteroids, regulate the body's metabolism.