Plant Hormonal Regulation Differs from Animal Hormonal Regulation in That

Plant hormonal regulation differs from animal hormonal regulation in that ________.

A) there are no dedicated hormone-producing organs in plants as there are in animals
B) all production of hormones is local in plants with little long-distance transport
C) plants do not exhibit feedback mechanisms like animals
D) only animal hormone concentrations are developmentally regulated
E) only animal hormones may have either external or internal receptors