Correct answer
Dopamine
This neurotransmitter makes one feel happy such as when one is rewarded. It is therefore responsible for addiction and motor behaviors. <span />
Answer:
Historians think that by 2000 BC, some of Sumer's largest cities had more than 100,000 residents. As a result, the basic political unit of Sumer combined the two parts. This unit was the city-state. ... The amount of farmland controlled by a city-state depended on its military strength.
Answer:
egalitarian societies, both tribes and bands value qualities such as generosity, bravery, and leadership. However, they are liberal in leveling and preventing excessive gaps in perceived abilities or resources (Fried,1967).
From a scientific perspective, the compound that makes it a system
would be the atoms in a compound interact with each other. The correct answer
between all the choices given is the second choice or letter B. I am hoping
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