In the Three-Domain System of Classification

question 24

Multiple Choice

In the three-domain system of classification

• A) eukaryotes are more similar to the prokaryotes now classified in domain Bacteria than to those now classified in domain Archaea.
• B) animals and plants are less similar to each other than to the prokaryotes now classified in domain Archaea.
• C) prokaryotes are classified into two domains, with the organisms in domain Archaea more similar to eukaryotes than to the prokaryotes in domain Bacteria.
• D) cladistics alone are used to formulate the new phylogenetic tree of life.
• E) by the principle of parsimony, it requires fewer assumptions to divide the prokaryotes into two domains than it does to put them in a single domain. Analysis of rRNA genes indicate that some prokaryotes, now classified as the domain Archaea, are more similar to eukaryotes than to the other prokaryotes that are now classified in the domain Bacteria.

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