estrogen has a direct effect on the select one: a. movement of an egg toward the sperm b. development of a placenta within the ovary c. formation of a zygote d. changes within the uterus

Respuesta :

These hormones coexist in a delicate balance to keep your period regular. Estrogen is involved in ovulation (when an egg is released from the ovaries) and thickens the lining of the uterus (endometrium) in preparation for pregnancy.

The main reproductive hormones are estrogen and testosterone. When girls reach puberty, estrogen causes the eggs to mature in the ovaries. These are then released at regular intervals during the menstrual cycle. Testosterone stimulates sperm production in men.

Estrogens regulate the growth, development, and physiology of the human reproductive system. This hormone also affects the neuroendocrine, skeletal, adipose and cardiovascular systems. Estrogen is an important sex hormone produced primarily by the ovaries in women and the testicles in men.

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