TPO-11 (47 BEGGING BY NESTLINGS) 第12題 - 英檢

47 BEGGING BY NESTLINGS (TPO11)

Paragraph 6：As these experiments show, begging apparently provides a signal
of need that parents use to make judgments about which offspring can
benefit most from a feeding. But the question arises, why don't nestlings beg
loudly when they aren't all that hungry? By doing so, they could possibly
secure more food, which should result in more rapid growth or
larger size, either of which is advantageous. The answer lies apparently
not in the increased energy costs of exaggerated begging—
such energy costs are small relative to the potential gain in calories—
but rather in the damage that any successful cheater would do to its siblings,
which share genes with one another.
An individual's success in propagating his or her genes can be
affected by more than just his or her own personal reproductive success.
Because close relatives have many of the same genes,
animals that harm their close relatives may in effect be destroying
some of their own genes.
Therefore, a begging nestling that secures food at the expense of its
siblings might actually leave behind fewer copies of its genes overall
than it might otherwise.

12. According to paragraph 6, which of the following explains the fact that a
well-fed nestling does not beg loudly for more food?
○ There is no benefit for a nestling to get more food than it needs to
survive.
○ By begging loudly for food it does not need, a nestling would
unnecessarily expose itself to danger from predators.
○ If a nestling begs loudly when it is not truly hungry, then when it is
truly hungry its own
begging may be drowned out by that of its well-fed siblings.
○ More of a nestling's genes will be passed to the next generation if its
hungry siblings get enough food to survive.


我選(B)可是答案是(D)

選B的原因是我覺得"鳥之所以不大聲地去乞食,是因為怕被predator發現,然後就會造成
整個鳥巢被侵略,基因也就無法傳遞下去(一粒老鼠屎壞了一鍋粥的道理)

不知道我哪裡有看錯嗎?>"<

另外~我覺得TPO好難....這篇就錯了5題

慘不忍睹~而且過3天就要獻出我的第一戰了

超緊張~希望有好心人幫我解惑~

還有到底要如何增進閱讀能力(離二戰還有4個月)(一戰只是測測程度)

謝謝!!!希望2/26考生一起加油



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