Which theory of water transport states that hydrogen bonding allows water molecules to maintain a continuous fluicolumn as water is pullefroroots to leaves?
A) pressure flow
B) evaporation
C) cohesion-tension
D) abscission
E) fusion
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Q69: Thmost commonly acceptetheory useto explain movement of
Q70: Guarcells
A)surround the stoma.
B)control the opening to the
Q71: Thmovement of materials already in thphloeis describeas
A)translocation.
B)declining
Q72: Thwater anminerals absorbeby throots usually first enter
Q73: Thcells that surrounstomata are
A)endodermal cells.
B)guard cells.
C)mesophyll cells.
D)vascular
Q75: Which of thfollowing statements is FALSE?
A)Transpiration creates
Q76: Sugars arcarriethroughout thplant in which tissue?
A)cortex
B)parenchyma
C)xylem
D)phloem
E)cambium
Q77: Which of thfollowing causes transpiration?
A)hydrogen bonding
B)the drying
Q78: Thstomata
A)only open at night.
B)are open when the
Q79: Most of thwater that enters thplant
A)leaves the
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