Answer:
Adaptation is necessary so species can survive in particular climates, or the species will die out. A good example is of polar bears having a thick but light coat of fur. This helps the polar bear by insulating itself while being able to swim easily.
Explanation:
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Relationships between kings and nobles: nobles serve the king
relationships between noble and knight: they give orders the knights
relationships between noble and peasants: peasants have to obey nobles
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Answer:
B. Exams were based on the ideas of Confucius
Explanation:
The civil service examination system was squarely based upon the Confucian classics and upon recognized commentaries on those classics.
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