【每日一題】AP 生物 20180123

AP Biology精編

During the industrial revolution, a major change was observed in many insect species due to the mass production and deposition of ash and soot around cities and factories. One of the most famous instances was within the spotted moth populations. An ecological survey was performed where the number of spotted moths and longtail moths were counted in 8 different urban settings over a square kilometer in 1802. A repeat experiment was performed 100 years later in 1902. The results of the experiment are shown below.

Which of the following statements best explains the data?

(A) As time passed from 1802 to 1902, the frequency of white-bodied pepper moths increased and black-bodied pepper moths decreased.

(B) As time passed from 1802 to 1902, the frequency of white-bodied pepper moths decreased and black-bodied pepper moths increased.

(C) As time passed from 1802 to 1902, the frequency of white-bodied pepper moths and black-bodied pepper moths both increased.

(D) As time passed from 1802 to 1902, the frequency of white-bodied pepper moths and black-bodied pepper moths both decreased.

題目解析

本題是讀圖題。圖中黑色柱子代表1802年的蛾子數(shù)量，白色柱子是1902年的蛾子數(shù)量。

圖表的數(shù)據(jù)表示原來的蛾子是白色為絕大多數(shù)，現(xiàn)在變成了黑色為絕大多數(shù)。

答案選擇(B)

As time passed from 1802 to 1902, the frequency of white-bodied pepper moths decreased and black-bodied pepper moths increased.。

題目選自Cracking the AP Biology 2015 Edition