A substance that contaminates some aspect of the environment and causes potential harm to living organisms is a
A) chemical.
B) toxin.
C) pathogen.
D) pollutant.
D
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Which of the following statements is TRUE?
A) Corticosteroid drugs mimic the action of cortisol hormone secreted by the adrenal gland cortex. B) Hydrocortisone, introduced in 1952, was the first topical corticosteroid drug. C) Hydrocortisone was the first topical corticosteroid approved in a nonprescription strength for over-the-counter sales. D) all of the above statements are true.
Inflammation of the oil glands is:
(a) tinea (b) impetigo (c) acne (d) pediculosis
Although biofeedback has significant applications in treating various medical disorders, including stress, it requires
a. adequately trained personnel. b. inexpensive equipment. c. simple electronic instruments. d. one short training session.
Use of ____ drugs delays the progress of HIV infection and even keep many people from developing AIDS
a. antiretroviral b. statin c. analgesic d. antibacterial e. antiviral