Question

why is the phloem in a leaf important to the roots of a plant?
a. it transports blastocysts to the roots of the plant.
b. it transports carbohydrates to the roots.
c. it transports oxygen to the roots of the plant.
d. it transports water from the roots to the leaves.

Explanation:

Phloem transports organic nutrients like carbohydrates made in leaves through photosynthesis to other parts of the plant including roots. Blastocysts are related to animal development not plants. Oxygen is mainly transported by air - spaces and xylem is for water transport from roots to leaves.

Answer:

B. It transports carbohydrates to the roots.