Examlex
Discuss the difference between a semiprofession and a paraprofession.
Umbilical Cord
A flexible cordlike structure containing blood vessels, connecting a fetus in the womb to the placenta, and supplying the fetus with oxygen and nutrients while removing waste products.
Placenta
An organ that develops during pregnancy, facilitating nutrient uptake, waste elimination, and gas exchange via the mother's blood supply.
Allantois
A membranous sac that develops from the posterior part of the yolk sac in the embryos of mammals, birds, and reptiles, involved in respiration and excretion.
Gametogenesis
The process through which gametes, or sex cells, are produced in the reproductive organs of an organism.
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