All members of the seven families for whom Mary Mallon prepared meals developed typhoid fever. Mary did not get sick. This is an example of __________.
A) a sporadic disease
B) an opportunistic infection
C) a nosocomial infection
D) a carrier borne infection
Ans: D) a carrier borne infection
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The breakdown of a joint's cartilage lining and the formation of bone spurs accompany which
condition? a. synovitis b. bursitis c. osteoarthritis d. uveitis e. phlebitis
On a lab bench, there are four balloons filled with identical volumes of different salt solutions: 0% (balloon
A), 5% (balloon B), 10% (balloon C), and 15% (balloon D). There are also four beakers each filled with identical volumes of a 10% salt solution. The balloons are semi-permeable; that is, only water can enter and exit the balloon. All four balloons are placed in separate beakers at the same time and are allowed to come to equilibrium. Which is the correct order of balloon volumes at equilibrium, from largest to smallest? A) A < B < C < D B) D < C < B < A C) D < B < A < C D) All balloons will be of equal volume at equilibrium.
Treponema vincentii, Bacteroides forsythus, and fusobacteria synergistically are involved in which infection?
A. Ornithosis B. Yaws C. Necrotizing ulcerative gingivitis (NUG) D. Gingivitis E. Nongonococcal urethritis
Cells save energy and materials by using many of the same enzymes for both ________ and ________ .
A. peptidoglycan; lipopolysaccharides B. metabolism; catabolism C. ATP; NADPH D. anabolism; catabolism