Three differences between a typical animal cell and a virus?​

Virus cells have :

-singular strands of dna
-plasmids
-cell wall

Because they can't reproduce by themselves (without a host), viruses are not considered living. Nor do viruses have cells: they're very small, much smaller than the cells of living things, and are basically just packages of nucleic acid and protein.

1. Viruses can’t reproduce by themselves
2.viruses are not considered living
3. Viruses are packages of nucleus acid and protein.

Examples: mental health problems cardiovascular disease obesity and other eating disordersmenstrual problems skin and hair problems