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By the End of the Fourth Week, the Embryo's Head

Question 37

Multiple Choice

By the end of the fourth week, the embryo's head is apparent and the eyes, nose, mouth and ears begin to form. How long is the embryo at this point?

A) 6 millimetres
B) 16 millimetres
C) 26 millimetres
D) 36 millimetres

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