What type of cells are present in the shells of nuts or stones of fruits?

Explanation

### Step-by-Step Solution:

1. **Identify the Question**: The question asks about the type of cells found in the shells of nuts or stones of fruits.

2. **Understand the Structure**: The shells of nuts and the stones of fruits are protective structures that provide strength and support to the seeds inside.

3. **Recognize the Type of Cells**: The cells that make up these hard structures are known as sclerenchymatous cells.

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