What research revealed that more americans lived in suburbs than in cities? select one: a. the 1993 harvard demographic investigation b. the 1990 united states census c. the 1970 united states census d. the 1980 yale demographic investigation

Hi! after fertilization occurs, the zygote goes through mitosis and then differentiation (aka specialization of cells) to have a variety of cells that perform different functions. this allows for the creation of tissues and so on, all of which were once stem cells with no specific function.i hope i !

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