Tropical Biodiversity: Time & Stability — NEET Biology
📚 Practice ConceptWhat is so special about tropics that might account for their greater biological diversity? Ecologists and evolutionary biologists have proposed various hypotheses; some important ones are (a) Speciation is generally a function of time, unlike temperate regions subjected to frequent glaciations in the past, tropical latitudes have remained relatively undisturbed for millions of years and thus, had a long
Assertion (A): Tropical and temperate regions have experienced different geological histories. Reason (R): Temperate regions have remained undisturbed while tropical latitudes were subjected to frequent glaciations.
View solution & NCERT explanation
Correct answer: C — If assertion is true but reason is false.
NCERT states “Unlike temperate regions subjected to frequent glaciations in the past, tropical latitudes have remained relatively undisturbed for millions of years.” The Assertion is true - they have indeed experienced different geological histories. The Reason is false - it reverses the situation. NCERT clearly states temperate regions faced glaciations while tropical latitudes remained undisturbed.
What does NCERT say about What so special about?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.