Which of the following is a major function of red blood cells?
a) Transportation of nutrients
b) Regulation of blood pH
c) Protection against infectious disease
d) Transportation of heat
e) All of the above
e) All of the above
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Adenoids are the ________ tonsil.
A) palatine B) pharyngeal C) laryngeal D) lingual E) None of the answers are correct.
Water moves back and forth across the plasma membrane by the process of
A. osmosis. B. filtration. C. facilitated diffusion. D. active transport. E. endocytosis.
At what developmental stage do red blood cells leave the bone marrow and enter the circulating blood?
A. Erythroblast B. Precursor cell C. Reticulocyte D. Erythrocyte E. Myeloblast
Which activity of the nephron will remove unwanted substances from the filtrate?
A) collecting system B) glomerular filtration C) tubular reabsorption D) tubular secretion