On hot, dry days, guard cells often close microscopic openings in plant leaves, conserving water. this is an example of
a. environmental factors causing gene mutation
in plants
b. finite resources acting as selecting agents for
evolution
c. a feedback mechanism for maintaining homeostasis
d. differentiation in plants as a result of stimuli
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On hot, dry days, guard cells often close microscopic openings in plant leaves, conserving water. th...
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