During the _______phase of the ______ cycle, a follicle matures.

Trisomy 21, otherwise known as ________________, occurs chromosome division produces a gamete with 2 copies of chromosome 21, which then combines with another gamete, resulting in three total copies.

During the _______phase of the ______ cycle, a follicle matures.

________________increases metabolic rate and heat production, regulates tissue growth and development, and maintains blood pressure.

During the ___________phase of the menstrual cycle, rising estrogen levels cause basal layer of endometrium to regenerate functional layer.

Myxedema is caused by a ________ of _______ and is characterized by low metabolic rate.

During the ___________phase of the menstrual cycle, rising estrogen levels cause basal layer of endometrium to regenerate functional layer.

_________________produce epinephrine and norepinephrine.  If excess levels are produced then __________develops.

Myxedema is caused by a ________ of _______ and is characterized by low metabolic rate.

Which process introduces genetic variation and has two consecutive cell divisions?