Bulk flow in the phloem tissue is mostly downward whereas bulk flow in xylem is mostly

A. upward.
B. sideways.
C. also downward.
D. very little bulk flow occurs in xylem.
E. flow of sugars.


Answer: A

Biology & Microbiology

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"Plan B", the most widely used emergency contraceptive, delivers a large dose of which hormone?

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The observable genetic traits of an individual refers to his or her ____

a. genotype b. phenotype c. locus d. gene e. chromosome

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What was the purpose of the spark chamber in this experimental apparatus?


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b. To produce ATP
c. To stop the reaction
d. To generate lightening
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