Fill in the blank with the best possible answer.

1		The primary sex organ of the male is the .
2		The primary sex organ of the female is the .
3		The structure that pulls the testes through the inguinal canal is the .
4		The support cells of the seminiferous tubules are called , or Sertoli cells.
5		is a special process of cell division used only in primary sex organs.
6		A secondary spermatocyte contains chromosomes. (This question requires a numeric answer.)
7		The phase of meiosis in which cross-over may occur is .
8		The tail of a sperm is more properly called a(n) .
9		The sperm storage site is the .
10		The gland may enlarge late in life.
11		The houses the testes.
12		Sustances that control sex hormones are called .
13		The is the location of a developing fetus.
14		Just before ovulation the follicle is called a(n) follicle.
15		Combination of sperm and egg nuclei is called .