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What's the difference between archaea and bacteria?

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Differences. • Unlike bacteria, archaea cell walls do not contain peptidoglycan. Chemistry of cell walls is different from bacteria: archaeal cell walls don't contain ... as autotrophs. Methanogens live in the guts of many organisms, from termites to humans. Many methanogens live symbiotically with fermenting bacteria. read more

In the past, archaea were classified as bacteria and were called archaebacteria. But it was discovered that archaea have a distinct evolutionary history and biochemistry compared with bacteria. read more

Morphologically, none. Here is a pseudo-test to make sense of this. (No, seriously. This is a test. Get ready.) I will give you two slides. One has a strain of archaea, and the other bacteria. read more

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