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Which stage of prenatal development formally starts when the differentiation of the major organs has occurred?
Acceptable Name
A term or name that is officially recognized and widely accepted in a specific field or context.
Compound
A chemical combination of two or more elements in precise ratios.
Acceptable Name
A name for a chemical substance that follows current nomenclature rules and is agreed upon by scientific organizations.
Compound
A substance made up of two or more different elements that are chemically bonded together in a fixed ratio.
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