The Chinese and Roman civilizations are most closely associated with the silk road trade, the construction of the Great Wall, and a society based on filial piety.
<h3><u>What does filial piety mean?</u></h3>
In Chinese and other East Asian cultures, filial piety is regarded as a crucial virtue and is frequently the focus of stories. The Twenty-four Cases of Filial Piety is one of the most well-known collections of these tales. These tales show how young people used to practice their filial piety rituals.
Although China has always had a wide range of religious beliefs, filial piety has always been a practice shared by almost all of them. According to historian Hugh D.R. Baker, respect for the family is the one characteristic that almost all Chinese people share.
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Answer:
<u>Sumer</u>, located in Mesopotamia, is the first known complex civilization, having developed the first city-states in the 4th millennium BCE. It was in these cities that the earliest known form of writing, cuneiform script, appeared around 3000 BCE.
Explanation:
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Answer:
Surfactant increases airflow. It has this effect on airflow because it reduces resistance to lung inflation. Airflow increased as predicted.
Explanation:
Pulmonary surfactant is a complex mixture of lipids and proteins secreted by the Type II alveolar cells. The major component of surfactant, dipalmitoyl-phosphatidylcholine (DPPC), is an amphiphatic phospholipid. The main function of the pulmonary surfactant is to reduce the surface tension at the air/liquid interface in the lungs by forming lining layer between the aqueous airway liquid and the inspired air. prevents alveolar and airway collapse at end-expiration and thus allows cyclic ventilation of the lungs. It decreases surface tension in the alveoli making it easier for the alveoli to increase surface area for gas exchange. By lowering alveolar surface tension, pulmonary surfactant provides two important benefits:
(1) it increases pulmonary compliance, reducing the work of inflating the lungs; and
(2) it reduces the lungs’ tendency to recoil, so they do not collapse as readily.
