Câu hỏi:
12/03/2020 595Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.
What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.
Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitment signals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallel sequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.
What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators (predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.
(Source: TOEFL Reading)
The word "unique" in paragraph 1 is closest in meaning to ______.
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Trả lời:
Giải bởi Vietjack
Từ “unique” trong đoạn 1 gần nghĩa nhất với ______.
A. natural (adj): thuộc về tự nhiên
B. habitual (adj): theo một thói quen
C. inherited (v): thừa hưởng, thừa kế
D. singular (adj): lạ, độc
Chọn D
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
I have left my book in _______ kitchen and I would like you to get it for me.
Xem đáp án »
12/03/2020
99,355
Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions.
With so many daily design resources, how do you stay-up-date with technology without spending too much time on it?
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12/03/2020
42,826
Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges
Two friends, Peter and Linda, are talking about pets.
- Peter: “Well, cats are very good at catching mice around the house”
- Linda: “___________________”
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12/03/2020
29,439
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
______, no one was absent from the farewell party last night.
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12/03/2020
24,832
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
It was not until after I got home that I realized that I had not set the burglar alarm in the office.
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12/03/2020
23,348
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
With very high price of oil, people have to ______ on petrol.
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12/03/2020
22,717
Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
Why are you always so jealous _______ other people?
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12/03/2020
20,923
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