Câu hỏi:
03/04/2020 333Read 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
Which of the following statements best represents the main idea of the passage?
Đáp án chính xác
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Trả lời:
Giải bởi Vietjack
Đáp án C
Câu nào sau đây đại diện ý chính cho bài văn?
Đáp án C - Các loài kiến thuộc chi Polyergus có quan hệ bất thường với những con kiến thuộc chi Formica
Dẫn chứng – Câu 1 – 2 – Đoạn 2: “The dulotic species of ants, however, are the supreme social parasites. Consider, for example, the unusual behavior of ants belonging to the genus Polyergus.”
Tạm dịch – Tuy nhiên, loài dulotic của kiến là loài động vật kí sinh mang tính chất xã hội cao.
Ví dụ xem xét các hành vi bất thường của loài kiến thuộc về chi Polyergus.
Câu cuối – Đoạn 2: “Polyergus has become specialized at obtaining workers from the related genus Formica to do these chores”
Tạm dịch: Polyergus đã trở thành chuyên gia trong việc giành được những con kiến thợ từ chi Formica để làm những công việc vặt này.
Câu cuối – Đoạn 3: “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”
Tạm dịch: Trong suốt khoảng thời gian đó có lẽ kéo dài 7 ngày, kiến thợ Formica mang tất cả trứng của Polyergus, những ấu trùng, những con nhộng, tất cả các con Polyergus trưởng thành, và thậm chí nữ hoàng Polyergus đến tổ mới.
Các đáp án khác
A – Con kiến thuộc chi Formica không có khả năng thực hiện những công việc nhất định.
B – Chi Polyergus khá là giống chi Formica
D – Kiến Polyergus thường để lại tổ của chungs để xây dựng đàn mới
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