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Answer:
Explanation:
The term used is Vassal. Usually it is a Lord that commands the knight's loyalty.
Answer: The Europeans carried a hidden enemy to the Indians. (diseases)
Explanation: The Native people of America had no immune support for the diseases that the European explorers and well as the colonist brought to them. Diseases such as smallpox, influenza, measles, and chickenpox was very deadly to American Indians.
Answer:
reverse engineering.
Explanation:
When a company takes part in deducing the knowledge about a product, for example, deconstruct the product not to copy it but to analyze the technology used in it, is called reverse engineering. The main aim of it is to analyze the competitor. It was first used in military and commercial activities. While not infringing the patent a new product is obtained by analyzing the original product and therefore it is an example of reverse engineering.