A vaccine produces its effects by
A. directly attacking the antigens and neutralizing them.
B. stimulating a primary immune response.
C. chemotaxis, the attraction of antigens to areas where the vaccine can destroy them.
D. activating autoantibodies.
Answer: B
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A) B cells B) T cells C) NK cells D) Neutrophils
This figure shows a frontal section of the cerebrum. What structure does number 1 indicate?
A. Corpus callosum B. Fourth ventricle C. Brainstem D. Lateral ventricle E. Central canal
The vessel central to the four chambers of the heart on axial CT images is the ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following contains the nucleus?
A. Dendrite B. Axon C. Cell body D. None apply.