[IB Biology SL at GHS: Human Reproduction]
19. What event of the menstrual cycle is occuring during days 5 through 10 when estrogen levels begin to rise between A & C?

(Click picture to see it full sized!)

A) Ovulation

B) A new follicle is stimulated to develop.

C) A brief rise in both LH and FSH levels.

D) Repair and initial growth of the uterine lining.

E) Further thickening of the uterine lining in preparation for implantation of the egg.

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Slichter