What is the importance of C4 plants?

Explanation

### Step-by-Step Solution:

1. **Definition of C4 Plants**: C4 plants are a group of plants that utilize a specific photosynthetic pathway known as the C4 pathway. This pathway allows them to efficiently fix carbon dioxide even under conditions where CO2 is limited.

2. **Special Leaf Anatomy**: C4 plants exhibit a unique leaf structure known as Kranz anatomy. This anatomy is characterized by the arrangement of mesophyll and bundle sheath cells, which facilitates the efficient capture of carbon dioxide.

3. **Tolerating Saline Conditions**: One of the key importance of C4 plants is their ability to thrive in saline (salty) environments. This is significant because many agricultural crops struggle in such conditions.

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