Geography Optional 300+ Score Pack · Model answer
Explain the concept of dispersal of species. What are the barriers to dispersal?
Dispersal is a fundamental biogeographic and ecological process by which an individual, or a group of individuals, moves away from its natal population to a new location where it settles and reproduces. It is not a random wandering but a directional, adaptive trait shaped by natural selection, since it governs how species colonize new habitats,…
You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.
What the full answer covers
- Understanding Dispersal as an Ecological Process
- Forms of Dispersal by Life Stage
- Modes of Dispersal by Mechanism
- (a) Active Dispersal
- (b) Passive Dispersal
- Barriers to Dispersal
- …and 5 more sections, with a conclusion
Unlock this answer and 800+ more
- 820 solved PYQ model answers (2013–2026), Paper I and Paper II
- Topic-wise across all 20 syllabus units
- 20 PYQ Pattern Analysis & Strategy reports, one per unit
- Diagrams and maps drawn inside the answers, where you would draw them
- 500 days of access from the day you enrol, on phone, laptop or tablet
₹1,770₹2,50029% off
Get Geography Optional 300+ Score Pack @ ₹1,770 →
One-time payment · No subscription · Instant access · UPI, cards, RuPay
See every Biogeography question (60 solved) →Already enrolled? Log in
