If you wanted to add a pattern to a surface what would you use?

Mabey a pen or pencile

Explanation:

answer; question (1) answer; proximity;

                      question (2); // alignment;

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!