By the End of the Fifteenth Century, Most of the City-States

question 21

Multiple Choice

By the end of the fifteenth century, most of the city-states of Italy

• A)were independent republics.
• B)had united into a powerful national state.
• C)had fallen under the control of powerful families or of foreign powers.
• D)were part of the Holy Roman Empire.
• E)became territories of the Vatican.

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Definitions:

Oxygenated Blood

Blood that has been enriched with oxygen from the lungs and is being transported by the arteries to the rest of the body.

Left Atrium

The left atrium is one of the four chambers of the heart, receiving oxygen-rich blood from the lungs and pumping it into the left ventricle.

Pulmonary Arteries

Blood vessels that carry deoxygenated blood from the heart to the lungs for gas exchange.

Diastole

Relaxation period of a heart chamber during the cardiac cycle.