QUESTION 19 Which of the following is a trait shared by prokaryotes and eukaryot
ID: 220159 • Letter: Q
Question
QUESTION 19
Which of the following is a trait shared by prokaryotes and eukaryotes, but not by viruses?
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. nucleic acids used to store hereditary information
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. complex and ordered arrangements of macromolecules
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. the capacity to evolve
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. the ability to process energy through metabolic reactions
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QUESTION 20
Which of the following is NOT a difference between Archaea and Bacteria?
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. presence of peptidoglycan
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. inhibition by the antibiotics chloramphenicol and streptomycin
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. presence of histones in DNA
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. presence of introns in genes
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. lack of a nucleus
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QUESTION 21
It is thought that many protists evolved from a symbiotic relationship that formed when a heterotrophic eukaryote engulfed a prokaryote. This process is called:
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. commensalism
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. transduction
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. conjugation
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. endosymbiosis
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. transformation
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QUESTION 22
Which of the following is NOT a role of bacteria in the ecosystem?
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. producers
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. decomposers
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. symbionts
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. all of these are roles of bacteria
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. pathogens
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QUESTION 23
The cell walls of fungi are composed of:
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. chitin
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. lipopolysaccharides
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. protein
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. cellulose
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. peptidoglycan
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. nucleic acids used to store hereditary information
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. complex and ordered arrangements of macromolecules
.
.
. the capacity to evolve
.
.
. the ability to process energy through metabolic reactions
Explanation / Answer
19) the ability to process energy through metabolic reactions
20) lack of nucleus
21) endo-symbiosis
22) producers
23) chitin