A variety of lymphatic cells are involved in the immune response. Which is not part of the process?
A. Replication of antigens
B. Direct attack and destruction of foreign or abnormal agents
C. Formation of memory cells
D. Production of antibodies
E. No exceptions; all choices are part of the immune response.
Answer: A
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What is the role of nurse cells?
A) Nurse cells produce testosterone. B) Nurse cells undergo spermatogenesis to become mature sperm. C) Nurse cells secrete androgens. D) Nurse cells create a microenvironment that supports spermatogenesis and form the blood testis barrier that isolates sperm from the blood. E) Nurse cells undergo synapsis to create secondary spermatocytes.
The type of brain waves observed in an individual who is awake but in a quiet resting state with eyes closed are ________ waves.
A. gamma B. beta C. theta D. delta E. alpha
Which of the four basic tissue types form coverings or linings of organs?
A) muscle tissue B) epithelial tissue C) protective tissue D) neural tissue E) connective tissue
The clumping of cells that are cross-linked by their attachments to antibodies is known as:
A) precipitation. B) opsonization. C) neutralization. D) agglutination.