Molecules with similar shapes have similar biological effects, because shape (structure) dictates effects (functions).
Answer:
I think A or B could be a possibility to your answer
Efferent nerve any nerve that carries impulses from the central nervous system toward the periphery, such as a motor nerve
Okay we are gonna use A iPhone to a old telephone so the telephone can only receive calls and call other people that it but say with the iPhone you can call the person and receive calls you can text you can video chat you can get emails you can have apps to entertain you you can have pictures and music you can have a ringtone and and text tones