Question

a. list four ways in which viruses can differ from each other.

Explanation:

Viruses can vary in genetic material (DNA or RNA), shape (icosahedral, helical etc.), host - range (specific to certain organisms), and presence or absence of an envelope.

Answer:

1. Genetic material (DNA or RNA)
2. Shape (e.g., icosahedral, helical)
3. Host - range (specificity for certain organisms)
4. Presence or absence of an envelope