Examlex
Which of the following is NOT a trend related to families around the world?
Umbilical Blood Vessels
The blood vessels in the umbilical cord that connect the fetus to the placenta, allowing nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
Insulator
A material or device that prevents the passage of heat, electricity, or sound.
Amniotic Fluid
The protective liquid contained within the amniotic sac of a pregnant female, which surrounds and cushions the fetus.
Nourishment
The food or other substances necessary for growth, health, and good condition.
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