Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Viruses are _____. a. | decomposers | c. | consumers | b. | parasites | d. | producers | | | | |
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2.
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Which
of the bacteria is the cause of tooth decay? a. | staphylococci | c. | rickettsia | b. | streptococcus | d. | Treponema
pallidum | | | | |
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3.
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Viruses are found in _____. a. | soil | c. | air | b. | water | d. | all of these | | | | |
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4.
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The
name streptococcus tells you that the bacteria are arranged as _____. a. | long chains of
round cells | c. | groups of
spirals | b. | pairs of round cells | d. | chains of rods | | | | |
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5.
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A
structure in some bacteria that is resistant to adverse environmental factors is a(n)
_____. a. | autotroph | c. | coccus | b. | prophage | d. | endospore | | | | |
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6.
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Which
of the following is NOT an evolutionary adaptation in bacteria? a. | They reproduce
rapidly. | b. | They can utilize substances harmful to other
organisms. | c. | They have a high rate of mutation. | d. | They cannot
exist under adverse conditions. | | |
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7.
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Penicillin kills bacteria by _____. a. | causing holes to
develop in their cell walls | b. | imprisoning them | c. | consuming
them | d. | depriving them
of nutrients | | |
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8.
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Cyanobacteria are _____. a. | salt-loving archaebacteria | c. | photosynthetic autotrophs | b. | eubacterial
heterotrophs | d. | chemosynthetic
autotrophs | | | | |
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9.
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A(n)
_____ is a virus that infects a bacterial cell. a. | decomposer | c. | bacteriophage | b. | endospore | d. | plasmid | | | | |
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10.
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Bacteria are used in _____. a. | farming | c. | the food industry | b. | the medical
industry | d. | all of
these | | | | |
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