During the period of the embryo, the muscles, circulatory system, and bones develop from the
a. endoderm, the inner layer of the embryonic disk.
b. mesoderm, the middle layer of the embryonic disk.
c. ectoderm, the outer layer of the embryonic disk.
d. the placenta, which connects the embryo to the mother.
B
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What will be an ideal response?
______ relates to whether or not you have chosen a good way to measure the behavior.
A. External validity B. Internal validity C. Construct validity D. External veracity
Compared to authoritarian and permissive parents, authoritative parents tend to have adolescents who:
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