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?

When does independent assortment occur?

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

From fertilization through week 8, a developing fertilized egg is known as a ___________.

cAMP messenger system is used by _________

From fertilization through week 8, a developing fertilized egg is known as a ___________.

Duplicated chromosomes consist of two identical sister ______________ attached at their ______________.