A flagellum is to a bacterium as ____ is to a
boat.
a. a captain
b. an engine
c. a propeller
d. a bow
e. an anchor
C
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According to studies by Norman Terry and coworkers, some plants can perform a version of
bioremediation of selenium in wastewater by
a. converting selenium to a form that kills waterfowl. b. using selenium to make a necessary supplement for humans. c. converting selenium into a relatively nontoxic gas. d. storing selenium in the soil. e. increasing the selenium concentration in the water.
In bacterial cells, when glucose is completely oxidized by all the pathways of aerobic cellular respiration, what is the maximum number of ATP generated?
A. 2 B. 36 C. 3 D. 24 E. 38
Groups of bacteria living together in a close
knit group are also known as a. eukaryotes. b. all pathogenic bacteria. c. monophylogenic cultures. d. biofilms. e. all of these
What is the difference between organic and inorganic fertilizers?
A) Organic fertilizers are carbon-based and are made from decomposed plant and animal wastes; inorganic fertilizers lack carbon and are produced by an industrial chemical process. B) Inorganic fertilizers are carbon-based and are made from decomposed plant and animal wastes; organic fertilizers lack carbon and are produced by an industrial chemical process. C) Organic fertilizers are carbon-based and are produced by an industrial chemical process; inorganic fertilizers lack carbon and are made from decomposed plant and animal wastes. D) Inorganic fertilizers are carbon-based and are produced by an industrial chemical process; organic fertilizers lack carbon and are made from decomposed plant and animal wastes.