NEET · BiologyHard
What is the primary reason for the high biodiversity observed in the tropics compared to temperate regions according to the hypothesis of environmental stability?
- A.Frequent glaciations in the tropics
- B.Higher solar energy input and lack of seasonal variation
- C.Lower rates of speciation due to stable climate
- D.Higher rates of extinction due to intense competition
Show correct answer & step-by-step solution
Correct answer: B — Higher solar energy input and lack of seasonal variation
Solution
- Tropical latitudes have remained relatively undisturbed for millions of years.
- This long evolutionary time allows for niche specialization and diversification.
- Temperate regions have been subjected to frequent glaciations in the past.
- Constant solar energy and lack of harsh seasonal changes promote higher productivity and diversity.
- Hence the answer is (B).
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