which best describes a virus?\na. a microscopic thing with a nucleic acid code\nb. a shell that surrounds a…
which best describes a virus?\na. a microscopic thing with a nucleic acid code\nb. a shell that surrounds a capsid\nc. a living organism that attacks bacteria\nd. a unicellular prokaryote
Answer
Brief Explanations:
Viruses are microscopic entities that contain nucleic - acid (DNA or RNA) as their genetic material. They are not cells, so they are not prokaryotes. A virus has a protein capsid that may or may not be surrounded by an envelope (not a shell surrounding a capsid). Viruses are not considered living organisms in the traditional sense as they cannot carry out metabolic processes on their own. Bacteriophages are a type of virus that attacks bacteria, but not all viruses attack bacteria.
Answer:
A. A microscopic thing with a nucleic acid code