Pox viruses contain which of the following vitamins?

The Tobacco Mosaic Virus $(TMV)$ is a tubular filament of size:

Which of the following is an example of a lichen?

Which of the following is an example of an animal virus?

Which of the following is true for viroids?

Lichen is usually cited as an example of 'symbiosis' in plants where an algal and a fungal species live together for their mutual benefit. Which of the following will happen if algal and fungal partners are separated from each other?
$A$. Both will survive and grow normally and independent from each other.
$B$. Both will die.
$C$. Algal component will survive while the fungal component will die.
$D$. Fungal component will survive while algal partner will die.
Based on your answer,how do you justify this association as symbiosis?