Distinguish among embryonic, fetal, and prenatal development
A) Embryonic development refers to the events that occur during the first 2 months after fertilization. Fetal development begins at the 9th week and continues until birth. Prenatal development consists of both embryonic and fetal development.
B) Embryonic development begins at the 9th week and continues until birth. Fetal development refers to the events that occur during the first 2 months after fertilization. Prenatal development consists of both embryonic and fetal development.
C) Embryonic development begins at fertilization and occurs until implantation. Fetal development begins at implantation and continues until the end of the second trimester. Prenatal development refers to the events of the third trimester.
D) Embryonic development begins at implantation and continues until the end of the second trimester. Fetal development begins at fertilization and occurs until implantation. Prenatal development refers to the events of the third trimester.
E) Embryonic development begins at implantation and continues until the end of the second trimester. Fetal development refers to the events of the third trimester. Prenatal development begins at birth and continues to maturity.
Answer: A
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