The hypothalamus secretes a hormone called GnRH that makes the anterior pituitary gland release FSH, referred to as (A)__________ hormone, and LH, or luteinizing hormone. As the levels of these two hormones increase, the oocyte and layer of cells that nourish it grow. As this happens, fluids containing a certain hormone increase in the follicle, and blood levels of the same hormone increase. That hormone is called (B)__________.

A.) follicle stimulating

I am not sure about B, but I believe that it is referring to the LH surge, so I would go with luteinizing hormone or LH.

To find the answer to your question, let's break it down step by step:

(A) To determine the hormone secreted by the hypothalamus that stimulates the anterior pituitary gland to release FSH and LH, we need to know the full form of "FSH." FSH stands for Follicle-Stimulating Hormone. It is responsible for stimulating the growth of follicles in the ovaries in females and the production of sperm in males. The hormone released by the hypothalamus that stimulates the anterior pituitary gland to release FSH and LH is called Gonadotropin-Releasing Hormone (GnRH).

So, the answer to (A) is "Gonadotropin-Releasing Hormone (GnRH)".

(B) Next, we need to determine the hormone that increases in the follicle and the blood levels. This hormone is secreted by the granulosa cells in the ovary and plays a crucial role in the menstrual cycle and fertility. It is known as "Estrogen."

Therefore, the answer to (B) is "Estrogen."

In summary:
(A) The hormone secreted by the hypothalamus that stimulates the anterior pituitary gland to release FSH and LH is GnRH.
(B) The hormone that increases in the follicle and blood levels is Estrogen.