Use the following diagram from the text showing the spread of the cattle egret, Bulbulcus ibis, since its arrival in the New World, to answer the following question.

Figure 52.1
-Which of the following organisms is the most likely candidate for geographic isolation?
A)sparrow
B)bat
C)squirrel
D)salt-water fish
E)land snail

Question

Use the following diagram from the text showing the spread of the cattle egret, Bulbulcus ibis, since its arrival in the New World, to answer the following question.
  
Figure 52.1
-Which of the following organisms is the most likely candidate for geographic isolation?
A)sparrow 
B)bat 
C)squirrel 
D)salt-water fish 
E)land snail

Quizplus · Accepted Answer

The land snail is the best candidate for geographic isolation because it has a limited range and is not likely to migrate to new areas quickly. As a result, it is easier for populations of snails to become isolated from each other, creating the potential for speciation. The other organisms listed (sparrow, bat, squirrel, salt-water fish) are all capable of traveling long distances and have large ranges, making it less likely for them to become geographically isolated.

Use the Following Diagram from the Text Showing the Spread