Plant viruses are obligate intracellular parasites that do not have the molecular machinery to replicate itself, thus, they are host-dependent. most of plant viruses structures are rod-shaped, with protein disc surrounding the genome.
true / false.

not sure if this what   you'r looking for would be percent composition

those characteristics are cellular organization, reproduction, metabolism, homeostasis, heredity, response to stimuli, growth and development, and adaptation through evolution. some things, such as a virus, demonstrate only a few of these characteristics and are, therefore, not alive