What are the disadvantages of common names?

Explanation

### Step-by-Step Solution:

1. **Definition of Common Names**: Common names are the names given to living organisms based on local languages and cultural contexts. They are often simpler and more accessible than scientific names.

2. **Variation Across Regions**: One major disadvantage of common names is that they can vary significantly from one region to another. The same organism may have different common names in different countries or even different areas within the same country. This can lead to confusion when trying to identify or communicate about a species.

3. **Lack of Specificity**: Common names often lack specificity and can be ambiguous. For instance, the common name "lady's finger" does not provide any scientific context or relevance to the organism it refers to, which can lead to misunderstandings.

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