Given below is a list of six micro-organisms . State their usefulness to humans.
(a) Nucleopolyedrovirus
( b) Sachharomyces cerevisiae
( c) Monascus purpureus
( d) Trichoderma polysporum
( E) Penicillium notatum
( F) Propionibacterium sharmanii

Explanation

### Step-by-Step Solution:

1. **Nucleopolyhedrovirus**:
- This genus includes baculoviruses that are primarily used as biocontrol agents. They help in controlling insect pest populations in agriculture, reducing the need for chemical pesticides.
- **Usefulness**: Acts as a biocontrol agent for pest management in crops.

2. **Saccharomyces cerevisiae**:
- Commonly known as baker's yeast, this unicellular fungus is extensively used in the baking and brewing industries. It ferments sugars to produce carbon dioxide and alcohol, which are essential in bread making and beer production.
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