Which of the following most accurately states the main idea of the passage? [br]

游客2025-02-27 22

问题 Which of the following most accurately states the main idea of the passage? [br] According to the passage, naked mole rat colonies may differ from all other known vertebrate groups in which of the following ways?

选项 A、Naked mole rats exhibit an extreme form of altruism.
B、Naked mole rats are cooperative breeders.
C、Among naked mole rats, many males are permitted to breed with a single dominant female.
D、Among naked mole rats, different tasks are performed at different times in an individual’s life.
E、Among naked mole rats, fighting results in the selection of a breeding female.

答案 A

解析 The best answer is A. The passage indicates that scientists once knew of no vertebrate group exhibiting extreme altruism like that of eusocial insects but the naked mole rat does exhibit such altruism. Choice B is incorrect: lines 32-36 indicate that other vertebrate groups breed cooperatively. Choice C is also incorrect: the passage does not indicates that naked mole rats are the only vertebrates having a single breeding female. The passage indicates that a naked mole rat may perform different tasks during its lifetime but does not discuss this for other vertebrates, so D cannot be correct. Choice E is not correct: although the passage indicates that fighting results in the selection of the queen, no information is given about the selection of breeding females in other vertebrate groups.

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