If you found a singled-celled organism with a nucleus, circular chromosomes, and the ability to live in extremely salty habitats, you would classify it as a member of the Eukarya. True or false?

False

Explanation:

Carl Woese suggested the classification system in which he divided the organisms into three domains: Archaebacteria, Eubacteria and the Eukaryotes.

In this domain, the domain archaebacteria are the domain which comprises of the organisms which share features of the other two domains.

In the given question, the provided characteristic features like the circular chromosome is a feature of the prokaryote, the habitat is extremely salty which is a characteristic feature of the archaebacteria but the presence of nucleus is a characteristic feature of the eukarya but the prokaryotes do not possess a well-defined nucleus but they possess nucleus like envelope.

Since the eukaryotes do not possess circular chromosomes therefore false is the correct answer.