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.
Carrying capacity in an ecosystem is the amount of organisms an ecosystem can hold. Some of the factors that affect the carrying capacity is
▪What kind of organism
▪ How big the ecosystem is
▪Where the ecosystem is located
▪How much food is available to the organisms
Answer: vertical merger
Explanation: A vertical merger involves similar businesses that are involved in particular specialized needs. For example, US steel produces steel which is used in making automobiles. General motors needs steel to produce automobiles. A merger between these two Companies is termed a vertical merger. Another example can be a grocery store that sells chicken eggs purchasing a poultry farm that rears chicken.
At age 25 your brain is developed enough to take control over your actions.
Answer: Narcissistic
Explanation:
People suffering from NARCISSISTIC PERSONALITY DISORDER demonstrate an extreme sense of self importance coupled with a lack of empathy for others.
They are insensitive to other people's feelings but are envious of other people and believe other people are envious of them as well.
Morty is suffering from this personality disorder.
