A foreign substance that elicits the response of the immune system is called:

Any bile stored in the gallbladder is ________ times more concentrated than bile produced by the liver

a. five to six b. six to ten c. ten to 15 d. 15 to 20

Histamine causes the all of the following EXCEPT:

A) bronchoconstriction. B) vasodilation. C) increased vascular permeability. D) increased intracranial pressure.