Question

A eukaryotic group which causes serious plant diseases comes under :

• A. Monera
• B. Fungi
• C. Protisa
• D. Viruses

Answer 1

The correct option is B Fungi

• A fungus is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and moulds, as well as the more familiar mushrooms. Most plant diseases – around 85 percent – are caused by fungal or fungi-like organisms
  
• Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization (having no nuclear membrane), such as bacteria.
  
• A protist is any eukaryotic organism that is not an animal, plant or fungus. The protists are unicellular eukaryotes of which few of them are parasitic, but do not cause diseases in plants
  
• Viruses are considered neither prokaryotes nor eukaryotes because they lack the characteristics of living things, except the ability to replicate (which they accomplish only in living cells).
  

So, the correct answer is 'Fungi'