What are viruses? Complete General Knowledge Question and Answer for Class 6, 7, 8, 9, 10, 11 and 12 Students CBSE Exams.

What are viruses?

Viruses are organisms that cause disease. They are visible only under electron microscopes. Opinion differs as to the exact nature of viruses. Some scientists believe that they are similar to genes while others think that they are somewhere between living and non-living matter.

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