Imagine you're trying to save money to buy new headphones, but you're also tempted to buy a candy treat from the student store. What is your choice motivated by? Your choice is motivated by the limited amount of money you have — a scarcity of money.

oh god this is hard but save money for head phones

Explanation:

julius caesar turned the roman republic into the roman empire by coming in and taking the "dictator" role during the time of a civil war (elites vs lower classes) winning battles and reputation, then declaring him dictator for life

hope this : )

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse