【题型】细节题(根据What point about... 判断)
【思路分析】问关于viceroy butterfly说了什么,考查具体细节信息,定位到对应位置后,一一核对选项内容,对应好同义替换即可
【原文定位】(1分33秒--1分58秒)
(professor) We did discuss that in class, how predators avoid the Monarch because it's toxic, and the Viceroy color resembles the Monarch’s. But you remember how we said the Viceroy is not the best example of Batesian mimicry.
(female student) Um…
(professor) In the 1990s, researchers show that the Viceroy should be classified as a Mullerian mimic.
(female student) Yeah. Here it is, Mullerian mimicry.
(professor) Mullerian mimicry is when two species, each of which is toxic, resemble each other.
(female student) Yeah, I totally forgot. The researchers, they conducted a study and found that the Viceroy is also toxic. So, Monarchs and Viceroys, they increase each other's protection from predators.
【选项分析】
A ×: 这种拟态非常罕见,未提及
B ✔️: 在学生举例说完Viceroy后,教授转折指出这不是Batesian mimicry(无毒的模仿有毒的)的好例子,其实应该归类到Mullerian mimicry(有毒的模仿有毒的),因为Monarch和Viceroy都是有毒的,对应B选项(过去该分类不正确)
C ×: 该蝴蝶的拟态使其能捕捉到其他种类的昆虫,未提及
D ×: 该蝴蝶的拟态没有帮到它抵御某种鸟类,与原文不符,原文说了会增强防御
【题目难度】易