TPO11 Begging by Nestlings - 英檢

※ 引述《chingting (有回憶的人最幸福)》之銘言：
: 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.
: 11. In paragraph 6, the author compares the energy costs of vigorous begging
: with the potential gain in calories from such begging in order to
: A) explain why begging for food vigorously can lead to faster growth and
: increased size
: B) By begging loudly for food it does not need, a nestling would
: unnecessarily expose itself to danger from predators.
: C) point out a weakness in a possible explanation for why nestlings do not
: always beg vigorously
: D) argue that the benefits of vigorous begging outweigh any possible
: disadvantages
: 我自己選D 答案是C 可以問一下為什麼D錯嗎?謝謝!!

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.

這個答案很明顯的就是說 increased energy costs of exaggerated begging 是錯的
因為............的理由。

至於D選項，benefits of vigorous begging文章裡根本就沒有出現。

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