An archaeal species, taken near a hydrothermal vent, survives and even multiplies at 121°C.This indicates that at least some members of this group can live under severe conditions.Which of the following does not characterize the archaea?

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All archaea lack peptidoglycan in their cell walls (A) is a characteristic of archaea, as they have unique cell walls made of pseudomurein or other substances. Some archaea reduce carbon dioxide (B), and many live in extreme environments (C). Methanogenic euryarchaeotes release approximately 2 billion tons of methane gas into Earth's atmosphere each year (E), which is an important contribution to the global carbon cycle. The only statement that does not characterize the archaea is (D), as most lipids in archaeal membranes contain isoprenoid chains, which are distinct from the unbranched long-chain fatty acids found in bacterial membranes.

An Archaeal Species, Taken near a Hydrothermal Vent, Survives and Even