The hypothesis that species diversity is greater at lower latitudes than higher latitudes because low-latitude habitats are older would be supported if speciation rates were:
A)the same at high and low latitudes.
B)higher at low latitude than at high latitude.
C)higher at high latitude than at low latitude.
D)more variable at high latitude than at low latitude.
E)more variable at low latitude than at high latitude.

Question

Quizplus · Accepted Answer

If speciation rates are the same at high and low latitudes, the greater species diversity at lower latitudes could be attributed to the older age of these habitats, rather than differences in the rate of speciation.

The Hypothesis That Species Diversity Is Greater at Lower Latitudes