Which statements about the veins running through a leaf are true? Select all that apply.

Объяснение

A vein carries two kinds of transport tissue: one delivers the water that the roots took up, and the other takes away the sugars the leaf has made. Treating a vein as a supply line of food into the leaf gets the direction wrong, because a lit leaf is where sugar is produced, and water is delivered to a leaf rather than drained back out of it.