With the aid of diagram, outline the evolution of the operating system, indicating major contributions in each evolution

these  signals travel  down a part of the neuron called the axon, which is like a wire that carries the  signal  to othernerve  cells. on average a  nerve  cell sends a  signal  at about 50 meters per second, which is over 100  miles  an hour!

answer; certification; plz check first, i believe this is correct. good luck;

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