Reasons for Tropical Biodiversity — NEET Biology
✅ Asked in NEET 2024Tropical regions show greatest level of species richness because: (NEET 2024) A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. B. Tropical environments are more seasonal. C. More solar energy is available in tropics. D. Constant environments promote niche specialization. E. Tropical environments are constant and predictable. Choose the correct answer:
Tropical regions show greatest level of species richness because: (NEET 2024) A. Tropical latitudes have remained relatively undisturbed for millions of years, hence more time was available for species diversification. B. Tropical environments are more seasonal. C. More solar energy is available in tropics. D. Constant environments promote niche specialization. E. Tropical environments are constant and predictable. Choose the correct answer:
Frugivorous birds are found in large numbers in tropical forests mainly because of: (NEET 2022 Phase 2)
Answer & NCERT explanation
Correct answer: A — A, C, D and E only
Tropical regions exhibit maximum species richness due to multiple factors. They remained undisturbed for millions of years allowing species diversification (A). More solar energy is available promoting higher productivity (C). Constant environments promote niche specialization reducing competition (D). Tropical environments are predictable supporting stable ecosystems (E). However, tropical environments are less seasonal, not more seasonal, making statement B incorrect.
Read more NCERT concept on the PYQ
Such constant environments promote niche specialisation and lead to a greater species diversity and (c) There is more solar energy available in the tropics, which contributes to higher productivity; this in turn might contribute indirectly to greater diversity.
NTA tests all three mechanisms explaining why tropical regions have greater species diversity: evolutionary time for diversification, constant predictable environments favoring niche specialization, and higher solar energy increasing productivity. Students commonly confuse which factor is primary or forget that diversity depends on multiple interconnected reasons rather than just one. The key mistake is choosing a single explanation when NTA expects understanding of how constant climate promotes specialization, longer evolutionary history allows more species formation, and greater energy availability supports larger populations. Remember: tropical diversity results from the combination of stability (constant climate), time (evolutionary history), and energy (solar radiation)—not any single factor alone.
What does NCERT say about Such constant environments promote?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.