Which of the following statements is not true of members of clade Archaea?
a. They appear to be more closely related to eukaryotes than to bacteria.
b. They have cell walls that lack peptidoglycan.
c. They lack membrane-enclosed organelles but do have a nuclear envelope.
d. They are often found in harsh habitats.
e. They include the methanogens, extreme halophiles, and extreme thermophiles as well as groups found in more moderate habitats.
Answer: c. They lack membrane-enclosed organelles but do have a nuclear envelope.
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