/A nerve impulse is an electrical charge running across a neuron. Explain why the simulation supports this explanation.

answer: d. load

a river's load refers to the natural phenomena in which the sediments, rocks   stones, boulders and other deposits are removed and picked from the bottom bed of the river due to the abrasion resulted by the high speed water current.

which condition is a cause of impotency in men?

b. the inability of the penis to become erect