A person with type AB blood has which cell markers?

a. A only
b. B only
c. A and B
d. neither A or B
e. O


ANSWER: c

Biology & Microbiology

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Which of the following is a challenge to the hypothesis that bats, which produce an unusually large number of sperm, increase the probability of conception when females engage in multiple matings?

I) Female bats can eject the sperm of certain males after mating. II) A female can actively choose which male mates with her last, thus increasing the odds of conception with that male's sperm. A) Only I is correct. B) Only II is correct. C) Both I and II are correct.

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Creutzfeldt-Jacob disease is known to have been transmitted by surgical instruments and transplanted nerve tissue.

Answer the following statement true (T) or false (F)

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Roots elongate continuously in order to _____________

A. mine new regions of soil for minerals B. act as a carbohydrate sink C. obtain O2

Biology & Microbiology

Second part of the small intestine___________________

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

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