The absolute refractory period of an action potential

A) only ensures one-way travel down an axon.
B) only allows a neuron to ignore a second signal sent that closely follows the first.
C) only prevents summation of action potentials.
D) ensures one-way travel down an axon and allows a neuron to ignore a second signal sent that closely follows the first.
E) ensures one-way travel down an axon, allows a neuron to ignore a second signal sent that closely follows the first, and prevents summation of action potentials.

What did the 13th , 14th 15th, and 19th amendments do?

Me! will give brainliest to whoever answers correctly! arrange the events in peruvian history in chronological order using the numbers 1-6. a. simón bolívar and antonio jóse de sucre’s defeat of spanish forces ensures peru’s independence. b. alejandro toledo is the first indigenous peruvian elected president. c. spanish conquistador francisco pizarro arrives in peru and enslaves peru's indigenous people. d. túpac amaru ii is executed, and his sacrifice inspires peruvians to seek independence and equal rights for indigenous people. e. the chaví­n culture establishes settlements high in the andes. f. attacks by rebel groups threaten democratic rule. (for example, find out the dates of the events (years) and and list them below) you for your time!

How does the chairman of the federal reserve board get his job?