Transportation of water by plants

Chan bc301049 at
Fri Aug 16 10:21:59 EST 1996

It is known that transport occurs in 3 levels in plants.  What is the
mechanism responsible for the transportation between plant cells?  Is
this type of transportation active, passive, or by diffusion?  Can
anyone explain to me the cicadian rhythm which is responsible for the
opening of stomatas. 
  Any help will be apprciated.  Thank You.

Erwin Chan
bc301049 at

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