How are viroids different from viruses?

Explanation

### Step-by-Step Solution

1. **Definition of Viruses**:
- Viruses are microscopic infectious agents that can only replicate inside the living cells of an organism. They are composed of genetic material (either DNA or RNA) encased in a protein coat known as a capsid.

2. **Origin of the Term 'Virus'**:
- The term 'virus' is derived from a Latin word meaning "poison" or "venom," indicating their harmful effects on living organisms.

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