Which one of the following substances is NOT released by activated helper T cells?
a. interleukin-1
b. gamma interferon
c. interleukin-2
d. interleukin-4
a. interleukin-1
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The name of the condition when waste products are allowed to build up in the blood is:
A) anuria. B) uremia. C) pyuria. D) hematuria.
The two external openings into the nose are called the:
a. nares b. cilia c. sinuses d. nasal septum
Withdrawal symptoms that occur when you try to quit smoking can typically include all of the following EXCEPT
A. depressed mood. B. difficulty concentrating. C. anxiety. D. lack of appetite.
Which of the following statements about colon cancer is FALSE?
A. The signs of colon cancer do not usually occur until the cancer is fairly advanced. B. Postmenopausal women who take estrogen therapy have a higher risk of colon cancer. C. Colon cancer is the third most common cause of cancer death. D. Aspirin has been shown to decrease the risk of colon cancer.