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The global population of frogs has declined in recent yea

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The global population of frogs has declined in recent yea [#permalink] New post 11 Dec 2017, 10:42
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The global population of frogs has declined in recent years while the amount of ultraviolet radiation reaching the Earth has increased. Since the genetic material in frog eggs is harmed when exposed to ultraviolet radiation, and since the eggs themselves are not protected by shells or leathery coverings but are gelatinous, the frog population decline is probably due, at least in part, to the ultraviolet radiation increase.

Which of the following, if true, provides the strongest support for the argument?

(A) Even in those regions where there has been no significant increase in ultraviolet radiation, only a small proportion of the frog eggs that are laid ever hatch.
(B) In areas where there has been the least decline in frog populations, populations of species of insects that frogs eat have decreased.
(C) The eggs of frog species whose populations are declining tend to have higher concentrations of damaging pesticides than do the eggs of frog species whose populations have not declined.
(D) In many places where turtles, which lay eggs with tough, leathery coverings, share habitats with frogs, turtle populations are also in decline.
(E) Populations of frog species that hide their eggs beneath rocks or under sand have declined considerably less than have populations of frog species that do not cover their eggs.
[Reveal] Spoiler: OA

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Re: The global population of frogs has declined in recent yea [#permalink] New post 08 Jan 2018, 08:39
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is the ans E?
Re: The global population of frogs has declined in recent yea   [#permalink] 08 Jan 2018, 08:39
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The global population of frogs has declined in recent yea

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