Examine the figure above.In the continental U.S. ,the dark green patches show areas with the highest bird species richness.Why would these areas be so species-rich?
A)Because these areas have the highest temperatures in the continental U.S.
B)Because these areas have mountainous terrain,which creates many habitat types.
C)Because in these areas,mountain tops act like islands,accelerating speciation.
D)Because these areas have low frequencies of extreme weather events and fire.

Question

Examine the figure above.In the continental U.S. ,the dark green patches show areas with the highest bird species richness.Why would these areas be so species-rich?
A)Because these areas have the highest temperatures in the continental U.S. 
B)Because these areas have mountainous terrain,which creates many habitat types. 
C)Because in these areas,mountain tops act like islands,accelerating speciation. 
D)Because these areas have low frequencies of extreme weather events and fire.

Quizplus · Accepted Answer

Mountainous terrain creates a variety of habitats with different microclimates, elevations, and vegetation types, which can support a wide range of bird species. This increase in habitat diversity can lead to high levels of species richness.

Examine the Figure Above