Why is a cell-mediated immune response more effective against intracellular microorganisms (such as viruses) than an antibody-mediated response?
A.
Cell-mediated (vs. antibody-mediated) response results in activation of a many more immune cells, so it is more effective at destroying antigens
B.
Intracellular microorganisms are too large for antibodies to be effective against
C.
Intracellular microorganisms are too small for antibodies to be effective against
D.
Cell-mediated response results in destruction of cell containing the intracellular microorganism; antibodies can't enter cells
D
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Fill in the blank(s) with the appropriate word(s).
Mesoderm gives rise to muscle, bone, and blood.
Answer the following statement true (T) or false (F)
The muscular system consists of the ________
A) skeletal muscles B) muscles of the heart C) muscles in the walls of hollow organs D) skeletal muscles and the muscles of the heart E) muscles of the heart and those in the walls of the hollow organs
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A. colon B. haustra C. crypts D. cecum