Question

virus is nutritionally
* symbiont * saprophyte * obligated parasite * facultative parasite​

Answer 1

-obligated parasite

Explanation:

All viruses are obligate parasites.They lack metabolic mechanisms of their own to make energy or to synthesize proteins. That's why they depend on host cells to carry out these functions.

Obligate parasites: Parasites that are totally dependent on the host for a specific stage of their life-cycle or the entire length of their lives.