In Figure 47-1, dentin is labeled as number:
a. 1
b. 2
c. 3
d. 4
e. 5
b
Biology & Microbiology
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Affinity maturation is one of the factors responsible for a stronger secondary immune response
Indicate whether the statement is true or false.
Biology & Microbiology
The "master cells" of the immune system that initiate and coordinate the adaptive immune response are
A. basophils. B. helper T cells. C. mast cells. D. cytotoxic T cells. E. B cells.
Biology & Microbiology
Restriction endonucleases were discovered by ________.
A. Arber and Smith B. Jackson, Symons, and Berg C. Temin and Baltimore D. Boyer and Cohen
Biology & Microbiology
Acrosomes contain nutrients for the developing sperm cells, and they also secrete hormones and other
signaling molecules. ____________________ Indicate whether the statement is true or false.
Biology & Microbiology