Which of the following would have the smallest number of hydrogen ions (H+)? 

A. A solution with the pH 2
B. A solution with the pH 6
C. A container of acetic acid (vinegar)
D. A container of a strong base


D. A container of a strong base

Biology & Microbiology

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Which organism appears clear on MacConkey agar and resembles some colonies of the Enterobacteriaceae family?

a. M. lacunata b. M. lincolnii c. M. canis d. M. nonliquefaciens

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Baking bread and making wine are dependent on

fungi belonging to the a. Ascomycetes. b. Zygomycetes. c. Basidiomycetes. d. Chytrids. e. Glomeromycetes.

Biology & Microbiology

Which statement about bacteria is FALSE?

a. Some bacteria can photosynthesize. b. Bacteria are important decomposers. c. A small percentage of bacteria are pathogenic. d. Bacteria are not cellular and are sometimes not classified as life forms. e. Bacteria convert atmospheric nitrogen into ammonia and then nitrates that can be used by plants.

Biology & Microbiology

What are the two prokaryotic domains?

A. Archaea & Bacteria B. Archaea & Eukarya C. Protista & Archaea D. Eukarya & Bacteria

Biology & Microbiology