Biology, 04.06.2020 14:04, yasameenakbari

Which of these is true for a fetus by the end of the first trimester of fetal development?
O A. Its weight is half what it will be at birth.
O B. Its placenta has served its purpose.
O C. Its external sex organs have formed.
D. Its lungs are fully developed.

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Which of these is true for a fetus by the end of the first trimester of fetal development?
O...