how does a vascular plant's phloem differ from its xylem?

a. phloem is found only in the leaves.

b. only phloem transports water.

c. only water flows through phloem.

d. phloem has a two-way flow of materials,

D. Phloem has a two-way flow of materials,

Explanation:

Only D is the correction option. Food can flow in each direction of phloem. By contrast, water flows in one direction in xylem.

It is incorrect to say that phloem is only found in leaves, and it only transport water.

Water is a precious resource, particularly for an arid country like Namibia. Unfortunately, the large amount of water used by households has a significant environmental impact, so saving water means protecting the environment and sustaining our long-term development.

Explanation: