Answer:
The correct answer is e. all of the above.
Explanation:
Nurse cells are also called sertoli cells and are located in the seminiferous tubules in the testes. They provide nourishment to the growing sperms by providing nutrients from surrounding cells.
During the development of of sperms they become genetically different from other cells so nurse cells form blood testes barrier to protect them from immune cells.
Nurse cells concentrate the testosterone in seminiferous tubules which is necessary for proper development of sperms. They also secrete inhibin which stop FSH secretion from anterior pituitary therefore regulate the spermatogenesis.
Answer: The three are listed below.
Explanation: Ignaz Semmelweis, Louis Pasteur, and Joseph Lister are three pioneers in the field of infection control.
Not sure I just need help
Answer:
When you breathe, air enters your mouth and moves into the pharynx. The air then goes down into your main airway (trachea) and into your lungs.
A flap of tissue called the epiglottis sits over the top of the trachea. This flap blocks food and drink from going down into the trachea when you swallow.
Answer:
The common cold because yes
