Helper T cells function as
A) antibody producers.
B) the regulators of the immune response.
C) the primary attack cell of cell-mediated immunity.
D) phagocytes.
E) None of the answers are correct.
B) the regulators of the immune response.
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Which structure is not considered to be part of the membranous labyrinth?
A. Scala vestibuli B. Semicircular duct C. Saccule D. Cochlear duct E. Utricle
Which of the following is a characteristic of a covalent bond?
A. Electrons are shared. B. Electrons are donated. C. The molecule is always polar. D. Protons are involved in the bond.
A patient is discovered to have a high calcium blood level. Which gland is most likely causing the problem??
A) ?Pituitary B) ?Parathyroid C) ?Adrenal D) ?Thymus
A solute, X, is placed in compartment A of a two compartment container and allowed to diffuse to compartment B and attain diffusion equilibrium. At that point in time,
A. there will be no further movement of any solute molecules between compartments. B. solutes will be moving in both directions equally. C. solutes will only continue to move from A to B. D. solutes will only continue to move from B to A. E. the concentration in compartment B will be much higher than that in compartment A.