Which of the Following Is a Prediction of the High-Productivity

Multiple Choice

Which of the following is a prediction of the high-productivity hypothesis that is proposed to explain the latitudinal gradient in species diversity?

A) Speciation rates should decline as niche differentiation occurs.
B) Larger and older regions should have more species diversity.
C) Speciation rates increase as niche differentiation occurs.
D) Smaller and younger regions should have higher species diversity.