Question

Reticulate and parallel venation

Answer 1

the arrangement of veins on the surface of the leaf is called venation.
reticulate venation-the veins are arranged in a pattern that forms a network
parallel venation-the veins are arranged parallel to each other 

Answer 2

the arrangement of viens in different patters is called reticulate venation,the root of this type of plant is tap root. the arrangement of leaves in parallel way is called parallel vienation,this type of plant have fibrous root.