Do viruses have metabolic diversity? what might that tell you about a virus?

the cell theory states that all living things including animals, as well as plants, are made of cells.

the national environmental policy act (nepa) is a united states environmental law that promotes the enhancement of the environment and established the president's council on environmental quality (ceq). the law was enacted on january 1, 1970. to date, more than 100 nations around the world have enacted national environmental policies modeled after nepa.