Figure 17.5

-As the trees in England become less sooty due to pollution controls on factories,which of the moths in the accompanying figure will be selected against?
A) The dark moth on the dark tree
B) The light moth on the light tree
C) All of the light moths equally
D) The dark moth on the light tree
E) All of the dark moths equally

Question

Figure 17.5
 
-As the trees in England become less sooty due to pollution controls on factories,which of the moths in the accompanying figure will be selected against?  
A) The dark moth on the dark tree 
B) The light moth on the light tree 
C) All of the light moths equally 
D) The dark moth on the light tree 
E) All of the dark moths equally

Quizplus · Accepted Answer

The dark moth on the light tree will be selected against because as trees become less sooty, the lighter bark makes dark moths more visible to predators, reducing their survival compared to light moths that blend in better.

Figure 17.5 -As the Trees in England Become Less Sooty Due to Less