CBSE Class 11-science Biology Biological Classification
- define extremophiles
- core of the virus are composed of
- peptidoglycan is not found in cell wall of
- What are virulents? Give example.
- Who coined the term virus?
- Who discovered viroids?
- How is a viroid different from a virus?
- What are lichens?
- Name any one disease caused by viroids.
- Write about the contributions of the following scientists: M. W. Beijerinck W. M. Stanley
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