Examlex
Which layer of sedimentary rock is closest to the surface?
Fertilized Egg Cell
A cell resulting from the fusion of a male sperm cell and a female egg cell, marking the beginning of embryonic development.
Implantation
The process in which a fertilized egg adheres to the wall of the uterus, marking the beginning of pregnancy.
Ovum
A female reproductive cell or egg, which, when fertilized by a sperm, begins the process of embryonic development.
Nourishment
The substances necessary for growth, health, and good condition, typically obtained from food.
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