Question

when rob dunn began studying the organisms found in human belly buttons, he discovered many different types of bacteria and even a couple of archaeans. determine if each statement below refers to bacteria, archaeans, both, or neither.
commonly found on and in humans
most closely related to eukaryotes
often found in extreme environments
contain a nucleus
are examples of prokaryotes
archaeans
bacteria
both
neither

Explanation:

• Bacteria are commonly found on and in humans.
• Archaea are most closely related to eukaryotes.
• Archaea are often found in extreme environments.
• Neither bacteria nor archaea contain a nucleus (they are prokaryotes).
• Both bacteria and archaea are examples of prokaryotes.

Answer:

• commonly found on and in humans: bacteria
• most closely related to eukaryotes: archaeans
• often found in extreme environments: archaeans
• contain a nucleus: neither
• are examples of prokaryotes: both