DescriptionThe term social order can be used in two senses: In the first sense, it refers to a particular system of social structures and institutions
Answer: The “graying of America”
Explanation: Just took the test
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The changes in the gene pool occurs from the one generation to another this process is called as the microevolution. The allele frequencies in the gene pool change due to many processes such as gene flow, natural selection, genetic drift, and mutation. In mutation the genetic variations occurs in the genome of the organisms due to change in the genetic makeup of the organisms new traits are produced which are passed on to the new generation and this brings change in diversity of genes in the gene pool.
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a person or thing that prevents incompatible or antagonistic people or things from coming into contact with or harming each other:
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