Question Detail
Question
What is the typical size range of viruses, and what equipment is generally required to observe them?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Under 'General characteristics and properties of viruses' -> 'Size', the document mentions: 'Their size ranges from 20 nm to 300 nm... they require an electron microscope.'
Hint
The document specifies both the unit of measurement and the type of microscope needed due to their small size.