Which is TRUE about the hormone vasopressin (also known as antidiuretic hormone, ADH)?
A. It promotes the excretion of more water in the urine.
B. Its main function is to trigger the secretion of aldosterone.
C. It triggers insertion of aquaporins into the apical membranes of collecting duct cells.
D. It stimulates the excretion of K+ in the urine.
E. It is a peptide hormone released from the adrenal gland.
Answer: C
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Hyaluronic acid
A. contributes to the rigidity of a joint. B. is found in the synovial membrane. C. is responsible for the lubricating properties of synovial fluid. D. makes up most of the matrix of hyaline cartilage. E. makes surfaces rough.
Most of the body's water output is in the form of
A. feces. B. urine. C. sweat. D. exhaled air.
Dizygotic twins result from
A. one egg cell and two sperm cells. B. one egg cell and one sperm cell. C. two egg cells and one sperm cell. D. two egg cells and two sperm cells.
More than one ________ combines to increase complexity and promote the level of organization to the organ level.
Fill in the blank(s) with the appropriate word(s).