During the flow phase of the menstrual cycle, the ___________ is shed.
Prior to ovulation, a follicle develops in the ovary and releases the hormone___________.
After fertilization, the egg cell divides repeatedly, increasing the number of cells but not the size, by the process of _________.
Nutrients pass between the mother and the developing fetus through the ___________. Placenta?
The blood vessels develop from the _________ of the gastrula.
2. Leutinizing hormone, and to a smaller extent, follicle stimulating hormone (LH and FSH)
3. cleavage (a period of fairly rapid mitotic divisions of the zygote without intervening growth)