What is the shape of the Tobacco Mosaic Virus $(TMV)$?

What are the fungal components of a lichen called?

Select the incorrect statement.

$A$ virus is considered a living organism and an obligate parasite when inside a host cell. However,viruses are not classified along with bacteria or fungi. What are the characteristics of a virus that are similar to non-living objects?

Who stated that viruses are crystalline?

Choose the correct option regarding the components of a lichen:
In lichens,the algal component is called the . . . . . . .