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Question

In general, latitudinal gradient states that species diversity  as we move away from the equator towards the poles.


Your Answer
A
increases
Correct Answer
B
decreases
Your Answer
C
same
Your Answer
D
can be predicted

Solution

The correct option is B decreases
In general, latitudinal gradient states that species diversity decreases as we move away from the equator towards the poles. So, the tropical regions are more diverse in species than the polar regions. Ecologists have porposed various hypotheses for this:
i) tropical latitudes have remained relatively undisturbed
ii) tropical environments are relatively more constant and predictable
iii) more solar energy is available in the tropics.

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