Helper T-lymphocytes are also known as

A. CD4+ cells.
B. memory T-lymphocytes.
C. cytotoxic T-lymphocytes.
D. T8 cells.
E. CD8+ cells.


Answer: A

Anatomy & Physiology

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Which of the following is a factor that affects the velocity and duration of muscle contraction?

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Fill in the blank(s) with the appropriate word(s).

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