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The muscles, blood, and the excretory system develop from which of the following layers of cells present in the embryo?
Q34: Margaret argues that understanding human development is
Q43: In the United States, about what percent
Q47: A child is presented with two identical
Q64: Why did the American Academy of Pediatrics
Q106: According to the text, in industrialized nations
Q111: According to the text, one reason that
Q135: According to Freud, children at this stage
Q149: Baby Chuck is picked up by a
Q174: The specific effect that a teratogen such
Q221: Implantation of a fertilized egg in the