Question

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:

• The first trimester is mainly for organ formation, not rapid weight gain.
• Fetal maturation takes about 38 - 40 weeks after conception.
• Organ systems develop at different rates (e.g., neural tube early, lungs later).
• Implantation in the uterine wall is crucial for proper nutrient and oxygen supply (via placenta) for growth.

Answer:

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