Question

A microbe is discovered living in an extreme environment near a deep sea vent. The microorganism lacks a nucleus and peptidoglycan in its cell wall, but it does have unusual membrane lipids. This species is most likely a member of the Domain ________.

Answer 1

Archaea

Step-by-step explanation:

Archaea are prokaryotes, which means they lack a nucleus. Many Archaea are extremophiles, organisms that live in extreme conditions, which give us another hint. But most importantly, a unique characteristic of Archaea is the presence of ether linkages in the lipids of their cytoplasmic membranes. This distinguishes archaea from eukaryotes and most bacteria.