Select all that apply.
archaea and bacteria are similar in which of the following ways?
they are prokaryotes.
they reproduce by binary fission.
they are believed to be the ancestors of plants.
they have a cell membrane made of unusual lipids.

Interesting question.

"They are prokaryotes" - YES, both bacteria and Archaea are considered prokaryotes

"They reproduce by binary fission" - YES, but keep in mind (in case your teacher drops this on you in a quiz or exam) that Archaea do not form spores, which many bacteria are capable of

"They are believed to be the ancestors of plants" - ?? Not sure. If I had to guess, I would go with NO, since the general consensus is that plants developed from green algae. Check your class notes.

"They have a cell membrane made of unusual lipids" - NO, only Archaea have that (they possess unusual ether lipids as part of their cell membranes, which bacteria do not)

Hope this helps!

Good luck.