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Which of the following is a reason for the greater biological diversity of tropical regions?
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(d) Higher diversity in tropical areas is because (i) Speciation is a function of time. Temperate areas have undergone frequent glaciation in the past. It killed most of the species. No such disturbances occured in tropics where species continuted to flourish and evolve undisturbed for millions of years (ii) There are no unfavouable seasons in tropics. Continued favourable environment has helped tropical organisms to gain more niche specialisation and increased diversity. (iii) More solar energy is available in tropics. This promotes higher productivity and increased biodiversity. (iv) Resource availability is higher in tropics (v) There is reduced competition in tropics due to favourable environment. (vi) Rate of extinction is low in tropics.
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Question Text | Which of the following is a reason for the greater biological diversity of tropical regions? |
Topic | Biodiversity and Conservation |
Subject | Biology |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 105 |