Read the following passages and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions
The biological community changes again as one moves from the city to the suburbs. Around all cities is a biome called the "suburban forest". The trees of this forest are species that are favored by man, and most of them have been deliberately planted. Mammals such as rabbits, skunks, and opossums have moved in from the surrounding countryside. Raccoons have become experts at opening garbage cans, and in some places even deer wander suburban thoroughfares. Several species of squirrel get along nicely in suburbia, but usually only one species is predominant in any given suburb -fox squirrels in one place, red squirrels in another, gray squirrels in a third - for reasons that are little understood. The diversity of birds in the suburbs is great, and in the South, lizards thrive in gardens and even houses. Of course, insects are always present. There is an odd biological sameness in these suburban communities. True, the palms of Los Angeles are missing from the suburbs of Boston, and there are species of insects in Miami not found in Seattle. But over wide stretches of the United States, ecological conditions in suburban biomes vary much less than do those of natural biome. And unlike the natural biomes, the urban and suburban communities exist in spite of, not because of, the climate
What does the author imply about the effect of climate in the suburban biome?
A. It is more noticeable than the effect of climate on the urban biome
B. It is not as important as it once was
C. It depends on the location of the biome
D. It is not as dramatic as the effect of climate on natural biomes
Chọn đáp án D
Tác giả ám chỉ điều gì về ảnh hưởng của khí hậu tới quần xã ngoại ô
A. đáng kể hơn so với tác động tới quần xã thành thị
B. Không còn quan trọng như trước
C. phụ thuộc vào vị trí của quần xã
D. Không nghiêm trọng như tác động của khí hậu tới quần xã tự nhiên
Dẫn chứng nằm ở câu cuối cùng:” And unlike the natural biomes, the urban and suburban communities exist in spite of, not because of, the climate”( Và không giống như quần xã sinh vật tự nhiên, cộng đồng sinh vật thành thị và ngoại ô tồn tại không bị ảnh hưởng bởi khí hậu)