Driven by the heart, your blood cells travel around your body carrying oxygen to your body cells. when you exercise, your body requires more oxygen. what happens to your heart when you exercise?

early greek culture has had an important impact on government and education. first of all, they established the democratic political systems and procedures we have today. consequently, we inherited trial by jury for example. considering education, greek philosphers, mathematicians set he intellectual basis of different areas of studies. in addition, the alphabet originated from the phoenician alphabet into the one we have today and the first library was built in egypt. moreover, greek culture has an impact in current art, architecture and sports disciplines.

a best description that resulted a division among labor in the early farming communities in their period was there was a change in their society in terms of having social roles to develop and change that led complications and divisions in the society.

the flooding of the nile was not a perfect occurrence. this gave rise to the belief in the gods and a highly stratified social structure. at the top of the social structure were gods such as ra and osiris because the egyptians believed that they controlled the universe. the egyptians tried their best to the gods because if they were happy, then the nile would flood producing an abundance of crops and preventing famine. after the gods came the pharaohs in social status. the egyptian people believed the pharaoh to be a god in mortal form. they had absolute power over the dominion which required protection through the of government officials and soldiers. the rest of the people’s status went in the order of scribes, merchants, artisans, farmers, and finally slaves.