【每日一題】AP 生物 20180125

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.

Why was the population of longtail moths also surveyed in this study?

(A) Variations in the environment were expected to alter the population of Longtail moths.

(B) Longtail moths were included as a control since they were not expected to change appreciably due to changes associated with the Industrial Revolution.

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

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

題目解析

長尾蛾包括在實驗中的目的是用來作為對照組，因為工業革命造成的環境變化對蛾子顏色可能會有影響，但是對尾巴的長短應該沒有影響。

答案選擇(B)

Longtail moths were included as a control since they were not expected to change appreciably due to changes associated with the Industrial Revolution。題目選自Cracking the AP Biology 2015 Edition