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Câu hỏi:

18/06/2024 98

Read the following passage and mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the questions

Social parasitism involves one species relying on another to raise its young. Among vertebrates, the best known social parasites are such birds as cuckoos and cowbirds; the female lays egg in a nest belonging to another species and leaves it for the host to rear

The dulotic species of ants, however, are the supreme social parasites. Consider, for example, the unusual behavior of ants belonging to the genus Polyergus. All species of this ant have lost the ability to care for themselves. The workers do not forage for food, feed their brood or queen, or even clean their own nest. To compensate for these deficits, Polyergus has become specialized at obtaining workers from the related genus Formica to do these chores

In a raid, several thousand Polyergus workers will travel up to 500 feet in search of a Formica nest, penetrate it, drive off the queen and her workers, capture the pupal brood, and transport it back to their nest. The captured brood is then reared by the resident Formica workers until the developing pupae emerge to add to the Formica population, which maintains the mixed-species nest. The Formica workers forage for food and give it to colony members of both species. They also remove wastes and excavate new chambers as the population increases

The true extent of the Polyergus and dependence on the Formica becomes apparent when the worker population grows too large for existing nest. Formica scouts locate a new nesting site, return to the mixed-species colony, and recruit additional Formica nest mates. During a period that may last seven days, the Formica workers carry to the new nest all the Polyergus eggs, larvae, and pupae, every Polyergus adult, and even the Polyergus queen

Of the approximately 8000 species of ants in the world, all 5 species of Polyergus and some 200 species in other genera have evolved some degree of parasitic relationship with other ants

The word “excavate” is closest in meaning to _____

A. find

B. clean

C. repair

D. dig

Đáp án chính xác

Trả lời:

verified Giải bởi Vietjack

Đáp án D

Excavate (v) đào bới

Đáp án đồng nghĩa: dig (v) đào bới, cuốc

Các đáp án khác

A – tìm kiếm

B – dọn

C – sửa chữa 

Câu trả lời này có hữu ích không?

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CÂU HỎI HOT CÙNG CHỦ ĐỀ

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Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

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Câu 2:

Mark the letter A, B, C, D on your answer sheet to indicate the word that is CLOSEST in meaning to the underlined part

The detective was asked to probe into the mysterious disappearance of the painting

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Câu 3:

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.

“I have found a new flat,” said Ann.

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Câu 4:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

My music teacher suggested ___ for an hour before breakfast

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Câu 5:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

The teacher at this school ____ with flu one after the other

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Câu 6:

Mark the letter A, B, C, D on our answer sheet to show the underlined part that need correction

In order to survive, trees rely to the amount of annual rainfall they receive as well as the seasonal distribution of the rain

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Câu 7:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

The surgeon tried to save the man but unluckily the ___ was not successful

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Câu 8:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

I can’t quite _____ out what the sign says

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Câu 9:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

Can I ___ our brain for a moment? I can’t do this crossword by myself

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Câu 10:

Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.

I should have studied last night. However, I was too tired.

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Câu 11:

Mark the letter A, B, C, D on your answer sheet to indicate the word that is OPPOSITE in meaning to the underlined part

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Câu 12:

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.

They cancelled all flights because of fog

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Câu 13:

Mark the letter A, B, C, D on your answer sheet to indicate the word that is CLOSEST in meaning to the underlined part

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Câu 14:

Mark the letter A, B, C, D on your answer sheet to indicate the word that is OPPOSITE in meaning to the underlined part

The piece of work is urgent and must be done without delay

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Câu 15:

Mark the letter A, B, C, D on your answer sheet to indicate the correct answer to each of the following questions

The house is too dark. You’d better need ___ a bright color 

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