Repolarization begins as: Group of answer choices sodium ions follow their electrochemical gradient into the cell. voltage-gated potassium ion channels begin to close. voltage-gated sodium ion channels activate. voltage-gated potassium ion channels activate.

is this a psat question, if so do not cheat try your best.

scientists have discovered that hiv does not cause aids by the virus's direct effect on the host's immune cells, but rather through the cells' lethal influence on one another. researchers from the gladstone institutes have revealed that hiv does not cause aids by the virus's

they dont have any evidence