Question

which trait describes all archaea? archaea are made up of one cell. archaea cannot make their own food. archaea have cells that have a nucleus.

Explanation:

Archaea are prokaryotic microorganisms, meaning all are unicellular (composed of one cell). Some archaea are autotrophic and can make their own food, so the second option is incorrect. As prokaryotes, archaea lack a membrane-bound nucleus, so the third option is incorrect.

Answer:

Archaea are made up of one cell.