The smaller veins in the leaf connect to the of the leaf

The smaller veins in the leaf connect to the margin of the leaf.

Explanation:

The structural and important part of the plant is the leaf. The leaf is the main source of photosynthesis. The leaf has small vein like structures to carry the prepared food and energy sources to be distributed throughout the plant.  

The smaller veins in a netted pattern run across the leaves to meet the margin of the leaf. The veins run laterally from the midrib to the margins hence providing a proper network and hence passing of the nutrients made feasible in an accommodative way.

the scientific method.