Answer:
a. True
Explanation:
Viruses are nor living nor non-living things. They do not metabolize, and only consist of nucleic acid in the inside of a protein cover which protects it. This proteinous layer is known with the term capsid, and is usually formed by units of certain proteins called capsomeres. Besides protection, these proteins serve as the structures that actually allows viruses contact and adhere to host cells during infection, that's why they are key components for the viruses success.
