The first identification test performed on a clinical isolate of gram-positive, catalase-positive cocci would likely be the:
a. penicillin test.
b. Gram stain.
c. oxidase test.
d. coagulase test.
D
The coagulase test is used to identify S. aureus presumptively in the clinical setting; it is the ma-jor pathogen in this group.
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The relationship of disease-causing organisms to an infected rabbit is one of
A. parasitism. B. commensalism. C. competition. D. herbivory. E. interference competition.
Someone who has consumed a lot of alcohol becomes dehydrated because alcohol ____
a. inhibits antidiuretic hormone (ADH) secretion, which leads to an increase in urination b. increases antidiuretic hormone (ADH) secretion, which leads to an increase in urination c. inhibits antidiuretic hormone (ADH) secretion, which leads to a reduction in urination d. increases antidiuretic hormone (ADH) secretion, which leads to a reduction in urination e. and water don’t mix, which leads to an exclusion of water
Cancer is a single disease that affects one in three Americans.
Answer the following statement true (T) or false (F)
The taxon shown here with the greatest number of
named species is a. vertebrates. b. insects. c. mollusks. d. plants. e. fungi.