Meiosis is performed by organisms such as animals and humans, while mitosis is performed at a more rapid rate by organisms such as bacteria, fungi, and plants. Also, meiosis has two rounds of genetic separation and cellular division involving a sperm and egg cell while mitosis only has one of each. In meiosis, homologous chromosomes separate and eventually produce daughter cells that are not genetically identical, whereas mitosis leads to the creation of daughter cells that are identical to the parent as well as to each other.
The thickness of the uterine lining , becomes very thick...because when the level of hormone progesterone reaches its highest levels. according to Dr.X on yahoo answers.
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