The division of the living world into three domains
A) is based on the number of cells in organisms of each group.
B) is based mostly on the major morphological differences between archaea and bacteria.
C) emphasizes the greater importance of eukaryotes.
D) was proposed by the early microscopists.
E) is based on phylogenetic relationships determined from nucleotide sequences of rRNA and other genes.
Correct Answer:
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Q13: Which of the following is found in
Q14: All photosynthetic bacteria
A) use chlorophyll a as
Q15: The common ancestry (monophyly) of the three
Q16: Gram-negative bacteria
A) appear blue to purple following
Q17: The common ancestor of all three domains
Q19: Which of the following is not a
Q20: Endospores
A) are produced by viruses.
B) are reproductive
Q21: The space between the outer membrane and
Q22: The sequencing of rRNA allowed scientists to
Q23: An ecosystem based on chemolithotrophs exists 2,500
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