Which statement is true regarding the pathogenesis of N. cinerea?
a. N. cinerea is a leading cause of fatal bac-terial meningitis.
b. Virulence factors include pili, capsule formation, and endotoxin.
c. Disseminated intravascular coagulation (DIC) and thrombocytopenia are compli-cations of infection.
d. N. cinerea is commonly encountered as a contaminant in clinical specimens.
D
The other Neisseria spp., besides N. gonorrhoeae and N. meningitides, are not considered pa-thogens and are often referred to as the saprophytic Neisseria. Although they are most commonly encountered as contaminants in clinical specimens, they can be occasionally involved in bacte-remia and endocarditis.
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The two kinds of bone tissue are
a. compact and loose. b. compact and spongy. c. dense and spongy. d. loose and dense.
Which of the following enhances evaporation?
a. dry air b. a breeze c. high humidity d. still air e. dry air and a breeze
The electron-transport chains of chloroplasts convey electrons to the ___________-Producing photosystem, while at the same time providing energy for the synthesis of _________.
A) ATP; NADPH B) water; NADPH C) NADPH; glyceraldehyde 3-phosphate D) NADPH; ATP E) NADPH; oxygen
Predict what would happen to a sponge that could no longer produce spicules.
A. Water circulation would be greatly impeded. B. Vulnerability to predation would increase. C. Intracellular digestion would cease. D. Gametes could no longer be produced.