Answer:
DNA (deoxyribose nucleic acid)
Explanation:
All viruses contain nucleic acid, either DNA or RNA, but not both, and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its invective form, outside the cell, a virus particle is called a virion.
A scientific theory is a broad explanation for events that is widely accepted as true. Evolution is a change in species over time. Evolution occurs by natural selection. The cell theory states that all living things are made up of cells, and living cells always come from other living cells.
