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 44 to 50.
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 ants' 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 8,000 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.
What happens when a mixed colony of Polyergus and Formica ants becomes too large?
A. The Polyergus workers enlarge the existing nest
B. The captured Formica workers return to their original nest
C. The Polyergus and the Formica build separate nests
D. The Polyergus and the Formica move to a new nest
Giải bởi qa.haylamdo.com
Đáp án D
Thông tin: The true extent of the Polyergus ants' 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.
Dịch nghĩa: Mức độ thực sự của sự phụ thuộc của kiến Polyergus đối với kiến Formica trở nên rõ ràng khi dân số lao động trở nên quá lớn cho tổ hiện có. Kiến do thám Formica xác định vị trí làm tổ mới, trở về lãnh địa của hỗn hợp các loài, và tuyển dụng thêm bạn cùng tổ Formica. Trong thời gian có thể kéo dài bảy ngày, các công nhân Formica mang về tổ mới tất cả các trứng của Polyergus, ấu trùng và nhộng, mỗi kiến trưởng thành Polyergus, và thậm chí cả nữ hoàng Polyergus.
Phương án D. The Polyergus and the Formica move to a new nest = Kiến Polyergus và Formica di chuyển đến một tổ mới, là phương án chính xác nhất.
A. The Polyergus workers enlarge the existing nest = Kiến thợ Polyergus nới rộng tổ hiện có.
Không có thông tin như vậy trong bài.
B. The captured Formica workers return to their original nest = Những kiến thợ Formica bị bắt trở về tổ ban đầu của chúng.
Không có thông tin như vậy trong bài.
C. The Polyergus and the Formica build separate nests = Polyergus và Formica làm tổ riêng.
Không có thông tin như vậy trong bài.
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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 44 to 50.
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 ants' 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 8,000 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.
According to the information in the passage, all of the following terms refer to ants belonging to the genus Formica EXCEPT the
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