Expert answer:Which of the following serves as a sensor

  

Solved by a verified expert:1.Which of the following serves as a sensor, or as part of a sensor, that functions in anegative feedbacksystem?A.Peripheral thermoreceptor neurons whose central axon terminals are located inthe skin.B.Peripheral axon terminals of carotid artery baroreceptors.C.Central hydrogen-ion sensitive chemoreceptors whose peripheral axon terminalsare located in the walls of the carotid artery.D.A and B.E.A and C.F.B and C.G.A, B, and C.H.None of the above.2.Which of the following serves as a controlled variable in a negative feedback system?A.Blood plasma levels of glucose.B.Bloodplasma levels of glucagon.C.Blood plasma levels of glycogen.D.A and B.E.A and C.F.B and C.G.A, B, and C.H.None of the above.3.Which of the following serves as an actuating signal, or as part of an actuating signal, ina negative feedback system?A.Action potentials in diaphragm muscle fibers.B.Action potentials in sympathetic neurons that release acetylcholine (ACh) nearthe SA node of the heart.C.Blood plasma levels of oxytocin.D.A and B.E.A and C.F.B and C.G.A, B,and C.H.None of the above

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