What drives the flow of water through the xylem?

a) the number of companion cells in the phloem
b) passive transport by the endodermis
c) active transport by sieve-tube elements
d) the evaporation of water from the leaves
e) active transport by tracheid and vessel elements

Which of the following options describes photosynthesis correctly? question 8 options: a plant uses carbon dioxide and water to make oxygen and nitrogen a plant breaks down sugar to make carbon dioxide. a plant uses sunlight, carbon dioxide, and water to make sugar and oxygen. a plant uses sunlight to break down sugars for digestion into water and oxygen.