A typical primary response to an antigen peaks in about

a. one-two days.
b. four-five days.
c. two weeks.
d. two months.
e. four months.


C

Biology & Microbiology

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In the figure above, which number would designate the biome with the highest variation in annual precipitation?

A) 1 B) 2 C) 3 D) 4

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Behavior that increases the reproductive success of the individual performing it is most specifically termed ________

a. adaptive b. acoustical c. sexual d. instinctive

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The menstrual cycle and ovulation are coordinated 

A. so that ovulation occurs when the uterus has a thick lining. B. because hormones produced by the uterus stimulate the ovary. C. by changes in body temperature. D. None of the above is correct.

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The selective chemical(s) in the Bile Esculin Agar is (are)

A. Esculetin B. Bile salts only C. Bile salts & esculetin D. Ferric citrate E. Esculin

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