In the microdilution broth dilution method, the interpretive criteria for the susceptible, interme-diate, or resistant categories are based on the:
a. quantitative differences (i.e., CFU/mL) in the turbidity in the test well.
b. correlation of the MIC with se-rum-achievable levels of the common doses of the antimicrobial agent and the-rapeutic outcomes based on clinical stu-dies.
c. either the presence or absence of zones of inhibition.
d. FDA's recommendations based on a na-tional database of participating health care agencies providing antibiograms for re-view and publication as a summative re-port.
B
The interpretive categories of MIC-based testing are defined according to the attainable concen-trations of the antibiotic in the patient's bloodstream. For the antibiotic to be effective, the con-centration of the drug in the serum must be inhibitory to the bacteria.
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Ecological relationships reflect the __________ traits of organisms in nature
A. behavioral B. physiological C. biomechanical D. behavioral and physiological E. behavioral, physiological, and biomechanical
As seen in this illustration, lines parallel to the equator designate longitude
1.True
2.False
Water can travel to the top of very tall trees to leaves. Which of the following explains how water travels to the top of a tall tree?
A) guttation B) translocation C) capillary action D) transpiration pull
Answer the following questions in reference to the five divisions of vascular plants listed below.
A. The giant club mosses of the Carboniferous period were members of this group. B. In members of this group the gametophyte is the dominant generation. C. Orchids are members of this division. D. Members of this group are heterosporous with well-developed seed and pollen-bearing cones. E. Members of this group include kidney beans, apples, and almonds.