During the ________ weeks of development, the eyes and ears reach their final positions and a heartbeat may be detected with a stethoscope.
A. 9th through 12th
B. 21st through 29th
C. 13th through 16th
D. 17th through 20th
Answer: C
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In addition to using visual observation, one can understand surface anatomy by ________ of the structures under study.
Fill in the blank(s) with the appropriate word(s).
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