Question

the main thick vein found in the central part of a leaf​

Answer 1

Answer:

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. If this design is net-like on both sides of midrib, the venation is reticulate.

Answer 2

Answer:

The thick vein seen in the middle of the leaf is called Midrib