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Why is it possible for spermatogonia to be outside the blood–testis barrier, yet necessary for primary spermatocytes and later stages to be within the barrier, isolated from the blood?

Male infertility (sterility) refers to ________.

What is the midlife change in estrogen and progesterone levels referred to as?

During the plateau phase of the sexual response, the glans and clitoris swell as the deep arteries dilate and the ________ engorge with blood.

Nurse cells secrete inhibin, which regulates the rate of sperm production.

Short answers should be 1-3 sentences each. Answer 1 of the following 3 questions (different than the one you previously chose) :-Define poverty trigger and give an example of one.-Define ethnic work and provide an example-From a structural-functionalist perspective, what are two functions of the family?

2/5 of marriages in the U.S. involve remarriages. If children are involved, this creates a ________________ family.

Marion, 10 years old, knew that she was related to the relatives on her mother’s side of the family as well as to the relatives on her father’s side of the family. This __________ system is the usual model in the United States.

In 150 words or more, discuss three point lighting and different ways it can be utilized.

The term used to describe a temporary absence of breathing is: