How do viruses differ from bacteria, fungi, and parasites?

Virues are different from bacteria, fungi and parasites, beacuse they can not survive without the presence of a host organism. They need a host to reside into, replicate, obtain nutrition and thrive. Outside host, they are just present as proteins or capsids.

Parasites are a piece of a vast gathering of living beings called eukaryotes. Parasites are not the same as viruses or bacteria infections on the grounds that their cells share many components with human cells including a characterized core. A few parasites just imitate inside a host living being, however, some can increase openly in the earth.