What is the significance of microvilli ?

Explanation

**Step-by-Step Solution:**

1. **Definition of Microvilli**: Microvilli are tiny, finger-like projections that extend from the surface of certain cells, particularly epithelial cells. They are found on the apical surface of cells lining the intestines and other organs.

2. **Increase in Surface Area**: One of the primary significances of microvilli is that they increase the surface area of the cell. This larger surface area allows for more efficient interaction with the environment, particularly in the absorption of nutrients.

3. **Facilitation of Diffusion**: Microvilli play a crucial role in facilitating diffusion. The increased surface area provided by microvilli allows for a greater number of molecules to diffuse across the cell membrane, enhancing the rate at which substances can enter or exit the cell.

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