問題詳情
44.The signal-transduction pathway in animals that use epinephrine
(A)is a classic example of synaptic signaling.
(B)involves activation of glycogen breakdown in liver and skeletal muscle cells.
(C)is a classic example of paracrine signaling.
(D)only B and C are correct.
(E)None of these describes the epinephrine system..
參考答案