Viruses: A) are very tiny cells on the order of 500 nm. B) cannot independently perform metabolic activities. C) contain both RNA and DNA.

Viruses:A)are very tiny cells on the order of 500 nm.B)cannot independently perform metabolic activities.C)contain both RNA and DNA.D)have a standard morphology that includes a capsid, tail, and tail fibers.E)All of the above.