Halves the number of chromosomes normally present in body cells.

Meiosis is a type of cell division in humans, which has only one purpose that is to make daughter cells with exactly half the number of chromosomes normally present in the cells. This is done by producing gametes or sex cells, which is the sperm and eggs used for sexual reproduction. The division process is from a diploid cell (one with two sets of chromosomes) to haploid cells (ones with a single set of chromosomes). 

"a.) well–developed vascular system."

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