Question

cumulative exam
cumulative exam complete
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which statement correctly describes the fetal development process?
the fetus undergoes the most rapid weight gain during the first trimester.
the fetus takes an average of 30 weeks to mature after conception.
fetal organ systems develop at a steady rate throughout pregnancy.
to ensure proper growth, a fertilized egg must implant in the wall of the uterus.

Explanation:

• First option: The most rapid weight - gain occurs in the third trimester, not the first.
• Second option: A fetus takes about 38 weeks (not 30) from conception to full - term maturity.
• Third option: Fetal organ systems do not develop at a steady rate. For example, major organ systems start forming in the first trimester and continue to mature at different paces.
• Fourth option: For proper growth and development, a fertilized egg (zygote, which becomes a blastocyst) must implant in the uterine wall. This is essential for obtaining nutrients and oxygen from the mother.

Answer:

To ensure proper growth, a fertilized egg must implant in the wall of the uterus.