The symptom that the client is experiencing is consistent with the deficiency in the Vitamin A which is a dietary element. The vitamin A is responsible for causing dryness to the eyes if a person is lacking this type of dietary element as Vitamin A is the one responsible for providing healthy vision for an individual.
Answer:
As the world's most dominant and productive crop, with extensive areas of land dedicated to global production yields of over 1 billion metric tons, corn is used for a variety of purposes — including animal feed, grain for human consumption, ethanol, as well as for high fructose corn syrup, sweeteners, starch, and for ingredients in food and all natural products
Another difference would be that DNA contains the 5 carbon sugar deoxyribose while RNA usually contains the 5 carbon sugar of ribose. One differs from the other, as ribose has an additional hydroxyl group bonded to one of the carbon atoms, where as deoxyribose does not.