<span>Copernicus completely changed people's minds in the way they perceived the world and the planet in general. He shifted away Ptolemaic model of the heavens, and developed his own theory of the heliocentric model in which the Sun is placed at the center of the Solar System. As well as this person, most of the talented scientists of renaissance brought into people's life something new and, in some measure to those who was not prepared for big changes, shocking things.</span>
Answer
Specific things that surprise about the legal restrictions on African Americans in the antebellum period were;
• Blacks in the southern parts who were free continued to live under slavery
• Freed African American actively participated in the American society like joining soldiers
• Free blacks purchased slaves that were relatives
• African Americans also participated in attaining freedom of others
- Slaves could not marry under the southern law
Explanation
During this period slavery and cotton were the main drivers of the southern economy. The slaves were undergoing arbitrary power abuse from the whites. Through coping family structures and community networks slaves developed a way of accommodating their conditions. Christianity and songs also helped slaves to develop a solace. Slaves utilized the idea of paternalism to find chances in the system and earn some freedom and autonomy.
The correct answer in my opinion would be that D is the most important factor here. But this question is quite tricky.
We can surely say for example that literature, organized schools and a hierarchy of priests are not something that constitute a civilization. Organized schools appeared to late, not every civilization had literature and having only a hierachy of priests is not enough to say you have a civilizaton.
Labor has been divided in pre-civilization hunter-gatherer societies as well.
For that reason I'd say the correct answer is D - more food than is needed for survival. Having this, the people in a certain group can focus on other things.
Answer:
Harvey stated that the veins returned blood to the heart
Explanation:
William Harvey provided proof;
That the theory of blood consumption by the body was not correct.
There are two separate blood flow loops
Blood in the veins flow towards the heart with one way blood flow bw=eing maintained by valves in the blood vessels
The correct option is therefore;
'Harvey stated that the veins returned blood to the heart'
