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Settlement houses were safe residences in poverty-stricken, mostly immigrant neighborhoods in major cities such as New York, Boston, and Chicago. The settlement house movement began in England and then emerged in the U.S. in 1886 with the founding of University Settlement House in New York City.
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Species interactions within ecological webs include four main types of two-way interactions: mutualism, commensalism, competition, and predation (which includes herbivory and parasitism).
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nucleus and we need dna so we can figure out people in our past
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