Which of the following antimicrobic tests determine the concentration of antimicrobic that is appropriate?
A) Kirby Bauer test and Tube dilution test
B) Tube dilution test and E-test
C) E-test and Kirby Bauer test
D) Kirby Bauer test, Tube dilution test and E-test
A) Kirby Bauer test and Tube dilution test
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Paland and Lynch showed that sexual populations possessed fewer deleterious mutations than asexual populations. These results supported the hypothesis that
A. sexual reproduction prevents fertilization with gametes carrying alleles with deleterious alleles. B. sexual reproduction produces fewer random mutations than asexual reproduction. C. asexual reproduction is associated with lower genetic diversity, resulting in the accumulation of highly deleterious mutations. D. in sexual reproduction, the reassorting of alleles allows for the elimination of more detrimental alleles than in asexual reproduction. E. sexual strains are associated with higher genetic diversity and thus accumulate more beneficial mutations than asexual strains.
Red algae can survive in deeper water because
of
a. phycobilins. b. holdfasts. c. chlorophyll a. d. a stonelike cell wall. e. their preference for freshwater habitat.
Sugar and salt act as preservatives by
A) inhibiting bacterial enzymes. B) producing oils that inhibit bacterial growth. C) inhibiting DNA replication. D) drawing water out of microbes. E) killing endospores.
Who is the least likely to experience a problem with their sleep/wake patterns (this one takes some independent thought!)?
-Blind people, as they only are able to respond to inner factors -Night owls, as they are most in 'synch' with the day to day environment of getting up early -Larks, as they fall asleep too early -Shift workers, as once one becomes accustomed to a new pattern, it becomes entrained.