The pressure-flow hypothesis describes  

A.  how hormones move through the phloem.
B.  how carbohydrates enter the sieve tubes.
C.  how carbohydrates in solution move through the phloem.
D.  how water and minerals move through the xylem.
E.  how carbohydrates and minerals move through the xylem.


C.  how carbohydrates in solution move through the phloem.

The pressure-flow hypothesis describes how carbohydrates flow from a source to a sink.

Biology & Microbiology

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