38. According to the passage, which of the following statements is true?
(A) A fish’s movement can be compared with that of a snake.
(B) Body weight and bone structure have shaped the development of fish.
(C) Water makes an ideal place for fish due to its sudden temperature changes.
(D) Fish have a flat and angular shape that helps them easily move through water.
(4)
Are organically grown foods the best food choices? The advantages claimed for such foods
over conventionally grown and marketed food products are now being debated. Advocates of
organic foods—a term whose meaning varies greatly—frequently proclaim that such products are
safer and more nutritious than others.
The growing interest of consumers in the safety and nutritional quality of the typical
North American diet is a welcome development. However, much of this interest has been sparked
by sweeping claims that the food supply is unsafe or inadequate in meeting nutritional needs.
Although most of these claims are not supported by scientific evidence, the preponderance of
written material advancing such claims makes it difficult for the general public to separate fact
from fiction. As a result, claims that eating a diet consisting entirely of organically grown foods cures
disease or provides other benefits to health have become widely publicized and form the basis for
folklore.
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Almost daily the public is besieged by claims for “no-aging” diets, new vitamins, and other
wonder foods. There are numerous unsubstantiated reports that natural vitamins are superior to
synthetic ones, that fertilized eggs are nutritionally superior to unfertilized eggs, that untreated grains
are better than fumigated grains, and the like.
One thing that most organically grown food products seem to have in common is that they cost
more than conventionally grown foods. But in many cases consumers are misled if they believe
organic foods can maintain health and provide better nutritional quality than conventionally
grown foods. So there is real cause for concern if consumers, particularly those with limited
incomes, distrust the regular food supply and buy only expensive organic foods instead.
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