Examlex
The introduction of ________________ onto the island of Guam has resulted in the extinction of most of the endemic forest bird species on the island.
Cleavage
The process by which a single cell divides into two or more daughter cells, often referred to in cellular biology and embryology.
Yolk Sac
The sac that holds the materials for the nutrition of the embryo.
Mesoderm
The middle layer of an embryo in early development, which will eventually give rise to the muscles, bones, and circulatory system.
Umbilical Cord
The rope-like connection between the fetus and the placenta. It contains the umbilical blood vessels.
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