In phloem, bulk flow occurs from regions of high to low ________ concentration.

A. solute
B. mineral
C. water
D. cytosol
E. cytoplasm


A. solute

Biology & Microbiology

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Due to the flu virus' ability to _________ rapidly, a new vaccine is needed for the flu each year.

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

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