In which of the following ways do plant hormones differ from hormones in animals?

In which of the following ways do plant hormones differ from hormones in animals? 






A) Plant hormones interact primarily with intracellular receptors.
B) Plant hormones may travel in air or through vascular systems.
C) Animal hormones are found in much greater concentration.
D) Plant hormones are synthesized from two or more distinct molecules.
E) Animal hormones are primarily for mating and embryonic development.






Answer: B


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