__________ may activate B cells, whereas __________ inhibit the activity of B cells.

a. macrophages; microphages
b. memory cells; plasma cells
c. helper T cells; suppressor T cells
d. memory cells; cytotoxic cells


Answer: c. helper T cells; suppressor T cells

Anatomy & Physiology

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A bundle of parallel axons in the CNS is called a ________; while in the PNS a bundle of axons is called a ________.

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During the absorptive state, the body makes use of stored nutrients for energy

Indicate whether the statement is true or false.

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The openings of the auditory tubes are located in the

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