Which of the following is a domain of life?

Question

BlackTom AI · Accepted Answer

Let’s examine what each option represents in the context of biological classification. 
Option 1: archaea. This is correct because Archaea is one of the three domains of life, alongside Bacteria and Eukarya. It groups organisms that are prokaryotic in cell structure but distinct from bacteria, often thriving in extreme environments. 
Option 2: plants. Plants are a major group within the domain Eukarya, not a separate domain themselves. They are classified under a kingdom within one domain, not as a domain in the broader sense. 
Option 3: protists. Protists represent a diverse collection of mostly single-celled organisms within the domain Eukarya; they are a paraphyletic group, not a domain. 
Option 4: viruses. Viruses are not considered organisms that belong to any of the three domains because they lack cellular structure and cannot carry out metabolism or reproduction on their own. They exist as genetic material within a host cell and are not classified as a domain. 
Option 5: prokaryotes. Prokaryotes describe organisms that lack a nucleus and membrane-bound organelles, which includes Bacteria and Archaea. However, ‘prokaryotes’ is not a formal domain name; it is a descriptive term encompassing two domains (Bacteria and Archaea) rather than a single domain itself. 
In summary, only archaea accurately names a domain of life, while the other options refer to groups within domains, particular life forms, or conceptual classifications rather than formal domains.

Dashboard TEST 1 2025 T3

Which of the following is a domain of life?

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