Answer:
Described the passage of the blood from the right heart through the lungs to the left heart and used the term “circulation” to describe this process. He discovered the valves in the veins. He noticed that the blood cannot move from the heart toward the periphery through the veins
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Economically, widespread inflation and food shortages in Russia contributed to the revolution. Militarily, inadequate supplies, logistics, and weaponry led to heavy losses that the Russians suffered during World War I; this further weakened Russia's view of Nicholas II.
The southern colonies were that ones who aided the growing of rice
