The pituitary gland then releases a large amount of on day 14 that causes O A. progesterone; contractions in the uterus O B. luteinizing hormone (LH); the egg to be released from the ovary OC estrogen, ovulation O D. follicle stimulating hormone (FSH), an egg to grow

Puberty in females begins with the first menstrual cycle the development of breasts an increase in GnRH increased estrogen from follicular development the completion of meiosis in oogenesis

Choose all of the correct statements about the formation and role of somites during development. Somites are formed when the notochord signals adjacent mesoderm cells Somites are ectoderm cells, so they will form teeth, jaws, and skin Somites signal adjacent cells to form ossification centers, which eventually grow bone to form vertebrae and ribs O Somites will directly turn into the neural tube (spinal cord)

In females the shedding of the uterine lining (a menstrual period) is stimulated by _________.     an increase in progesterone and estrogen levels in the blood     a decrease in progesterone and estrogen levels in the blood     release of the follicle from the ovary     the arrival of the egg in the uterus