Question

several lines that run across the leaves​

Answer 1

Explanation:

These lines on the leaf are ca lled veins. A thick vein seen in the middle of the leaf is called the midrib. The design made by veins in a leaf is called the leaf venation.

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Answer 2

Explanation:

These lines on the leaf are ca lled veins. A thick vein seen in the middle of the leaf is called the midrib. The design made by veins in a leaf is called the leaf venation.