Refer to the Table

question 8

Multiple Choice

Refer to the table.
The table shows the number of species of a group of mammals present in the tropics, the subtropics, and the temperate zone over the last fifty million years.
- Of the three broad categories of hypotheses that have been proposed to explain latitudinal gradients (diversification rate, diversification time, and productivity or carrying capacity) , these data most clearly fit which hypothesis?

• A) Diversification rate
• B) Diversification time
• C) Carrying capacity
• D) Combination of diversification rate and diversification time

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