K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

 

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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)

According to the passage, one thing eusocial insects can do is rapidly switch from ______ .

 

A. a defensive to an offensive stance 

B. a solitary task to a group task 

C. one environment to another 

D. one type of food consumption to another 

1
4 tháng 10 2017

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Theo đoạn văn, một điều côn trùng eusocial có thể làm là nhanh chóng chuyển từ_______ .

  A. thế phòng thủ để sang thế tấn công

  B. một nhiệm vụ đơn độc thành một nhiệm vụ nhóm

  C. môi trường này thành môi trường khác

  D. một loại tiêu thụ thực phẩm này thành loài khác

Thông tin: 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.

Tạm dịch: Trong hầu hết các trường hợp, các nhóm kiến thợ có khả năng tìm thức ăn và bảo vệ tổ tốt hơn, bởi vì chúng có thể chuyển từ phản ứng cá nhân sang phản ứng của nhóm và quay lại nhanh chóng theo nhu cầu

Read 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 following 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...
Đọc tiếp

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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)

Which of the following questions does the passage primarily answer?

A. Why have ants been able to thrive for such a long time? 

B. What are the differences between social and solitary insects?

C. How do individual ants adapt to specialized tasks?

D. Why are ants predators? 

1
20 tháng 6 2017

Chọn A

Kiến thức: Đọc hiểu

Giải thích:

Đoạn văn chủ yếu trả lời cho câu hỏi nào sau đây?

  A. Tại sao kiến có thể phát triển mạnh trong một thời gian dài như vậy?

  B. Sự khác biệt giữa côn trùng đơn độc và xã hội là gì?

  C. Làm thế nào để kiến cá nhân thích nghi với các nhiệm vụ chuyên ngành?

  D. Tại sao kiến là loài săn mồi?

Read 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...
Đọc tiếp

Read 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)

Which of the following questions does the passage primarily answer?

A. Why have ants been able to thrive for such a long time?

B. What are the differences between social and solitary insects?

C. How do individual ants adapt to specialized tasks?

D. Why are ants predators?

1
21 tháng 7 2018

Câu hỏi nào dưới đây mà bài đọc tập trung trả lời?

A. Tại sao kiến có khả năng sinh tồn và phát triển trong khoảng thời gian dài như vậy?

B. Sự khác biệt giữa côn trùng xã hội và côn trùng có tập tính sống 1 mình?

C. Bản thân mỗi con kiến thích nghi như thế nào với nhiệm vụ được chuyên môn hóa?

D. Tại sao kiến là động vật ăn thịt?

Thông tin: What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years?

Tạm dịch: Con tàu sinh học lạ lùng nào đã dẫn đến sự đa dạng hóa đáng kể và sự thành công không thể chối cãi của lũ kiến trong vòng hơn 50 triệu năm qua?

Chọn A

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect answer to each of the following 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...
Đọc tiếp

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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)

 

 

All of the following terms are defined in the passage EXCEPT ______ .

A. predators 

B. eusocial 

C. caste 

D. series-parallel sequence

1
4 tháng 2 2019

Chọn C

Kiến thức: Đọc hiểu

Giải thích:

Tất cả các thuật ngữ sau đây được định nghĩa trong đoạn văn NGOẠI TRỪ_______.

  A. động vật săn mồi

B. eusocial                  

C. đẳng cấp                

D. trình tự song song

Thông tin:

+ predators are animals that capture and feed on other animals

+ Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects.

+ Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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.

Tạm dịch:

+ động vật săn mồi là động vật bắt và ăn động vật khác

+ Eusocial đề cập đến một hình thức xã hội côn trùng đặc trưng bởi chuyên môn hóa các nhiệm vụ và cùng nhau chăm sóc con nhỏ; nó là hiếm trong số các côn trùng.

+ Điều quan trọng không kém là thực tế việc thực hiện các tác vụ gồm nhiều bước được thực hiện theo trình tự song song. Đó là, từng con kiến có thể chuyên về các bước cụ thể, di chuyển từ một đối tượng (chẳng hạn như một ấu trùng được cho ăn) sang một đối tượng khác (một ấu trùng thứ hai được cho ăn). Chúng không cần phải thực hiện từng nhiệm vụ để hoàn thành từ đầu đến cuối - ví dụ, kiểm tra ấu trùng trước, sau đó thu thập thức ăn, sau đó cho ấu trùng ăn.

 Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect answer to each of the following 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...
Đọc tiếp

 

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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 "rotting" in paragraph 1 is closest in meaning to _______. 

A. cultivated 

B. expanding 

C. collected 

D. decaying 

1
4 tháng 2 2018

Chọn D

Kiến thức: Đọc hiểu

Giải thích:

Từ "rotting" trong đoạn 1 có nghĩa gần nhất với_______.

  A. trồng trọt             

B. mở rộng                 

C. thu thập                 

D. mục nát

Thông tin: 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.

Tạm dịch: Câu trả lời dường như là chúng là nhóm côn trùng eusocial săn mồi đầu tiên vừa sống vừa kiếm ăn chủ yếu trong đất và trong thảm thực vật mục nát trên mặt đất.

Read 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 following 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...
Đọc tiếp

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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 "they" in bold in the last paragraph refers to ______ . 

A. termites 

B. places 

C. ants 

D. predators 

1
9 tháng 12 2019

Chọn C

Kiến thức: Đọc hiểu

Giải thích:

Từ “they” in đậm trong đoạn cuối nói đến_______.

  A. con mối               

B. nơi                         

C. loài kiến                 

D. động vật săn mồi

Thông tin: 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.

Tạm dịch: Điều khiến loài kiến trở nên khác thường trong tập hợp côn trùng eusocial là thực tế chúng là loài săn mồi duy nhất (động vật săn mồi là động vật bắt và ăn động vật khác) chiếm đất và rác trên mặt đất.

Dịch bài đọc:

Những con tàu sinh học bất thường hoặc độc đáo nào đã dẫn đến sự đa dạng hóa đáng chú ý và thành công không thể vượt qua của loài kiến trong 50 triệu năm? Câu trả lời dường như là chúng là nhóm côn trùng eusocial săn mồi đầu tiên vừa sống vừa kiếm ăn chủ yếu trong đất và trong thảm thực vật mục nát trên mặt đất. Eusocial đề cập đến một hình thức xã hội côn trùng đặc trưng bởi chuyên môn hóa các nhiệm vụ và cùng nhau chăm sóc con nhỏ; nó là hiếm trong số các côn trùng. Các bầy, đàn có tổ chức phong phú trong một vùng đất được tạo ra bởi tính xã hội được hưởng một số lợi thế chính so với các cá nhân đơn độc.

Trong hầu hết các trường hợp, các nhóm kiến thợ có khả năng tìm thức ăn và bảo vệ tổ tốt hơn, bởi vì chúng có thể chuyển từ phản ứng cá nhân sang phản ứng của nhóm và quay lại nhanh chóng theo nhu cầu. Khi một đối tượng thức ăn hoặc kẻ xâm nhập tổ quá lớn để một cá nhân xử lý, bạn cùng tổ có thể nhanh chóng được tập hợp bằng tín hiệu báo động hoặc cần thêm thành viên. Điều quan trọng không kém là thực tế việc thực hiện các tác vụ gồm nhiều bước được thực hiện theo trình tự song song. Đó là, từng con kiến có thể chuyên về các bước cụ thể, di chuyển từ một đối tượng (chẳng hạn như một ấu trùng được cho ăn) sang một đối tượng khác (một ấu trùng thứ hai được cho ăn). Chúng không cần phải thực hiện từng nhiệm vụ để hoàn thành từ đầu đến cuối - ví dụ, kiểm tra ấu trùng trước, sau đó thu thập thức ăn, sau đó cho ấu trùng ăn. Do đó, nếu mỗi liên kết trong chuỗi có nhiều kiến thợ tham gia, ý thức hướng vào bất kỳ đối tượng cụ thể nào sẽ ít có khả năng thất bại. Hơn nữa, kiến chuyên về các loại lao động cụ thể thường tạo thành một đẳng cấp chuyên biệt theo độ tuổi hoặc hình thức cơ thể hoặc cả hai. Có một số tài liệu về sự vượt trội về hiệu suất và năng suất năng lượng ròng của các loại khác nhau cho các nhiệm vụ kiểu mẫu của chúng, mặc dù các nghiên cứu thử nghiệm cẩn thận vẫn còn tương đối ít.

Điều khiến loài kiến trở nên khác thường trong tập hợp côn trùng eusocial là thực tế chúng là loài săn mồi duy nhất (động vật săn mồi là động vật bắt và ăn động vật khác) chiếm đất và rác trên mặt đất. Những con mối eusocial sống ở cùng một nơi với kiến và cũng có những con thợ không cánh, nhưng chúng hầu như hoàn toàn ăn thảm thực vật đã chết

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect answer to each of the following 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...
Đọc tiếp

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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 task of feeding larvae is mentioned in the passage to demonstrate ______. 

A. the advantages of specialization 

B. the type of food that larvae are fed 

C. the different stages of ant development 

D. the ways ant colonies train their young for adult tasks 

1
3 tháng 9 2019

Chọn A

Kiến thức: Đọc hiểu

Giải thích:

Nhiệm vụ cho ấu trùng ăn được đề cập trong đoạn văn để chứng minh_________ .

A những lợi ích của chuyên môn hóa

  B. loại thức ăn mà ấu trùng được cho ăn

  C. các giai đoạn phát triển kiến khác nhau của kiến

  D. cách các đàn kiến đào tạo con non các nhiệm vụ trưởng thành

Thông tin: 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).

Tạm dịch: Đó là, từng con kiến có thể chuyên về các bước cụ thể, di chuyển từ một đối tượng (chẳng hạn như một ấu trùng được cho ăn) sang một đối tượng khác (một ấu trùng thứ hai được cho ăn).

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate thecorrect answer to each of the following 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...
Đọc tiếp

Read 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 following 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 recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. 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 ______ 

A. natural 

B. habitual 

C. inherited 

D. singular 

1
18 tháng 2 2017

Chọn D

Kiến thức: Đọc hiểu

Giải thích:

Từ “unique” trong đoạn 1 gần nghĩa nhất với________.

  A. tự nhiên               

B. quen thuộc             

C. được thừa hưởng    

D. độc đáo

Thông tin: What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years?

Tạm dịch: Những con tàu sinh học bất thường hoặc độc đáo nào đã dẫn đến sự đa dạng hóa đáng chú ý và thành công không thể vượt qua của loài kiến trong 50 triệu năm?

Read 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...
Đọc tiếp

Read 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)

All of the following terms are defined in the passage EXCEPT ______.

A. predators

B. eusocial

C. caste

D. series-parallel sequence

1
18 tháng 8 2017

Tất cả thuật ngữ dưới đây đều được giải thích ngoại trừ _____.

C. caste (n): đẳng cấp xã hội

Thông tin:

Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects.

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).

(predators are animals that capture and feed on other animals)

Phương án

Tạm dịch:

Eusocial là một từ chỉ một loại hình xã hội côn trùng đặc trưng bởi sự chuyên môn hóa về nhiệm vụ và sự phối hợp chăm sóc con của nhau; đây là điều hiếm trong giới côn trùng.

trong a series-parallel sequence. Có nghĩa là, mỗi con kiến có thể chuyên về một bước cụ thể nào đó từ việc cho ăn một con ấu trùng này đến việc cho ăn một con ấu trùng khác.

(predators là những động vật mà chuyên bắt và ăn những động vật khác)

Chọn C

Read 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...
Đọc tiếp

Read 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 "rotting" in paragraph 1 is closest in meaning to _______.

A. cultivated

B. expanding 

C. collected 

D. decaying 

1
8 tháng 1 2017

Từ “rotting” trong đoạn 1 gần nghĩa nhất với _____.

A. cultivated (v): trồng, nuôi trồng

B. expanding (v): mở rộng, nở ra

C. collected (v): thu thập

D. decaying (v): phân hủy

Thông tin: 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.

Tạm dịch: Câu trả lời dường như là chúng là nhóm côn trùng mang tập tính xã hội ăn thịt đầu tiên vừa sống, vừa tìm kiến thức ăn chủ yếu ở đất và ở trong những thực vật bị thối rữa trên mặt đất.

Chọn D