Answer:
There were an estimated 18 million Native Americans living north of Mexico at the beginning of the European invasion. Prior to the arrival of the Europeans, American Indians were remarkably free of serious diseases. People did not often die from diseases. As the European explorers and colonists began to arrive, this changed and the consequences were disastrous for Native American people. The death tolls from the newly introduced European diseases often reached 80-90 percent. Entire groups of people vanished before the tidal wave of disease.
Explanation:
The diseases brought to this continent by the Europeans included bubonic plague, chicken pox, pneumonic plague, cholera, diphtheria, influenza, measles, scarlet fever, smallpox, typhus, tuberculosis, and whooping cough. The diseases introduced in the Americas by the Europeans were crowd diseases: that is, individuals who have once contracted the disease and survived become immune to the disease. In a small population, the disease will become extinct. Measles, for instance, requires a population of about 300,000 to survive. If the population size drops below this threshold, the virus can cause illness and death, but after one epidemic, the virus itself dies out.
Another important factor in the European diseases was the presence of domesticated animals. The source of many of the infections was the domesticated animals which lived in close proximity with the humans.
Overall, hundreds of thousands of Indians died of European diseases during the first two centuries following contact. In terms of death tolls, smallpox killed the greatest number of Indians, followed by measles, influenza, and bubonic plague.
Answer:
all responses are correct
Answer:
B. Frame Analysis
Explanation:
Frame analysis is used widely in the interpretation of information. It is a research method wherein, people try to understand what a person is trying to say by searching for clues in his or her message.
This method of information analysis is used in politics, as well as, in information and communication studies. People also tend to use it unknowingly in their daily activities. It helps to make the interpretation of information faster. The clues in this instance, could be metaphors, catchphrases, or jargon.
Answer: Formal operational stage of cognitive development
Explanation:
Formal operational stage of cognitive development is the level of Piaget's theory of cognitive development where a person is able to generate hypothesis about world and things for answering issues.For solving certain problem, best predictions are made regarding to it in a systematic and orderly manner.
This type of thinking is considered scientific rather than hit and trial method because meaningful ,relatable and valid guesses are made in accordance with the question or problem.Then best way for solving problem is then concluded.
