Which process reduced the number of chromosomes in the cell by half

The number of chromosomes is reduced in half from 46 to 23, the process that causes that effect is the meiosis process, because they have only half the total chromosomes in a somatic cell, they are termed haploid.

answer; i believe the answer is hydraulic action;

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.