A scientist isolates a new species of prokaryote. He notes that the specimen is a bacillus with a lipid bilayer and cell wall that stains positive for peptidoglycan. Its circular chromosome replicates from a single origin of replication. Is the specimen most likely an Archaea, a Gram-positive bacterium, or a Gram-negative bacterium? How do you know?

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Q: Both bacteria and archaea used to be known as prokaryotes. True or false?

A: Answer is true, both  bacteria and archaea used to be known as prokaryotes.

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A: