During the male climacteric,
A) sperm production ceases.
B) the penis shrinks.
C) FSH and LH levels rise.
D) sexual activity increases.
E) circulating testosterone levels increase.
C) FSH and LH levels rise.
You might also like to view...
Connective tissue fibers that allow the skin and arteries to bounce back after they are stretched are __________ fibers.
Fill in the blank(s) with the appropriate word(s).
Most cells can perform pinocytosis, but only a few kinds can perform phagocytosis.
Answer the following statement true (T) or false (F)
Vasoconstriction is the result of the contraction of smooth muscle of the
A) Tunica intima. B) Tunica media. C) Tunica externa. D) Tunica lumena.
____ T cells are necessary for cloning of other immune cells?
a. cytotoxic. b. helper. c. suppressor. d. regulatory. e. inhibitory.