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Set 19 Bacteria Archaea And Viruses

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Question 1

(Multiple Choice)

Free
The common ancestry (monophyly)of the three domains (Archaea,Bacteria,and Eukarya)is confirmed by

A) the similar appearances of different organisms.
B) ample fossil evidence.
C) DNA as the genetic material that encodes for proteins.
D) the similar sizes of members of all three.
E) the presence of nuclear membranes in all three.

Answer

Question 2

(Multiple Choice)

Free
The Gram method is useful for classifying all bacteria that

A) have two cell membranes.
B) have flagella.
C) have cell walls with at least some peptidoglycan.
D) are prokaryotic.
E) form endospores.

Answer

Question 3

(Multiple Choice)

Free
Archaea is the closest sister group to the

A) bacteria.
B) bacteria and eukaryotes.
C) eukaryotes.
D) prokaryotes.
E) None of the above

Answer