Positive feedback differs from negative feedback in that _____
A) positive feedback benefits the organism, whereas negative feedback is detrimental
B) the positive feedback's effector responses are in the same direction as the initiating stimulus rather than opposite of it
C) the effector's response increases some parameter (such as body temperature), whereas in negative feedback it can only decrease the parameter
D) positive feedback systems have only effectors, whereas negative feedback systems have only receptors
B
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