Biosynthesis of vitamin K (menaquinone) by ________ spp. inhabiting the ________ of humans is a potentially important mutualistic relationship for human health

A) Bifidobacterium / intestinal tract
B) Bifidobacterium / stomach
C) Escherichia / intestinal tract
D) Escherichia / stomach


Answer: C

Biology & Microbiology

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Which of the following would you expect to be most prevalent in the intestines of humans?

A) Endospore-forming bacilli B) Gram-negative, aerobic cocci C) Facultatively anaerobic gram-negative rods D) Aerobic, helical bacteria E) None of the above

Biology & Microbiology

The accompanying figure shows a triglyceride that contains unsaturated fatty acids

Indicate whether the statement is true or false

Biology & Microbiology

Scientific thinking relies on which of the following?

A) accepting the statements of others as true B) intuition C) memorizing facts D) skepticism E) applying your preconceptions

Biology & Microbiology

True or False: At its earliest stages, a logistic growth curve closely resembles an exponential growth curve

A. true B. false

Biology & Microbiology