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The first reason is their size. They are very small and are very difficult to see. Special technology needed to be developed in order to observe them and their behavior and reach the conclusion that they were in fact infectious agents that could cause diseases. This wasn't possible before because the microscopes weren't as well developed.
Another is that they have a very long incubation period. This means that if you have them, a long time will pass before they start harming you which meant that many people believed them to be harmless since they couldn't track their behavior over a longer time period, also due to the lack of good technology.
Answer:
Mandela and Tambo was a South African law firm established by Nelson Mandela and Oliver Tambo in Johannesburg in late 1952. It was the first "Attorney Firm" in the country to be run by black partners.
Answer:
the point is (2,3) and the slope is 5
Explanation:
Yes, most of the travelers on the Oregon Trail was young families. In the mid-19th century, the Oregon Trail was the main pathway for American emigrants searching for new lands and opportunity on the frontier, and most of the emigrants traveling were young families.
