Question

Sophie is looking at a small particle through a microscope. It has unique proteins in its cell wall, but no nucleus. It is shaped like a sphere. What is Sophie observing? A. a virus B. a bacterial cell C. an archaeal cell D. a host cell

Answer 1

C. an archaea cell

Step-by-step explanation:

Both bacteria and archaea have a cell wall, but the bacteria cell wall has peptidoglycan. The archaeal doesn't have peptidoglycan, but some unique proteins. They both also don't have nuclei. A virus doesn't have a cell wall, and a host cell, if eukaryote, would have a nucleus.