As the human immunodeficiency virus (HIV) begins to kill the host's _____________________, the host's immune system begins to fail.
a. liver cells
b. RNA
c. red blood cells
d. DNA
e. white blood cells
Ans: e. white blood cells
You might also like to view...
The basal lamina:
A. is a specialized extracellular matrix found beneath epithelial tissues. B. surrounds endothelial cells found in blood vessels. C. is a collagen-rich extracellular matrix D. links to epithelial cells through hemidesmosomes, which attach to intermediate filaments. E. All of these choices are correct.
The allergic response is primarily mediated by _____ antibodies.
A. IgG B. IgM C. IgA D. IgE E. IgD
The pancreatic secretions governing glucose levels are precisely controlled by ____
a. neural connections to the pancreas b. a positive feedback loop c. cooperative interactions d. a negative feedback loop e. releasing factors
Which one of the following is not among the four most abundant elements in living organisms?
A) Carbon B) Hydrogen C) Nitrogen D) Oxygen E) Phosphorus