FULL-GROWN PLANT AND ITS PARTS ip: 
leaves of the maize run? In germinating beans, peas, 
marrow, sunflower, oak, etc., you found two cotyledons. 
How do the veins in the leaves of these plants run? 
The work of leaves. Leaves do a great deal of work. 
They do several kinds of work. They work together 
to make plant food, and to do other work which we 
shall learn later. 
