Which of the following are tiny sacs in the axon terminal that hold chemicals that are released into the synapse?

Synaptic vesicle

Explanation:

It is also known as the Neurotransmitter vesicle, it can be found inside the axon close to the pre-synaptic membrane, it plays the role of releasing it content into the synaptic cleft, this is achieved only by fusing with the membrane, whenever impulse goes down to the axon of a neuron and gets to the axon terminal, the synaptic vesicle is stimulated.

explanation: we can only guess at how our actions may be perceived in the future. doing something really big like killing lots of people, saving lots of people, affecting the lives of lots of people is a sure fire way of being remembered in historical records. we can also make a difference in the history records by being a small influence on something bigger, whether that is as a civil servant, scientist or artist.

of course you could argue that we all affect history just as tiny cogs in a   bigger machine.

if you mean how do people influence our opinions of things which have already happened, then simply by writing a book which looks at things form a different perspective and trying to convince people that this perspective is more accurate or truthful. people do it all the time i.e. richard the third was a terrible or was he? plenty would disagree, it's just that their views aren't the most widely known.n: