The influx of calcium ions into the axon terminal triggers exocytosis.
<span>The answer is D. Islam. Islam reached northern Africa in the 600s and continued to spread westward throughout the 700s until it reached the Iberian peninsula. Islam was expanded during this time by the military conquests of the Umayyad and Abbasid caliphates.</span>
I think it's A becuse the stageof meiosis is cytokinsis