Class 12 · Biodiversity and Conservation

Co-extinctions: Dependent Species Extinction — NEET Biology

📚 Practice Concept
📖 NCERT Source

Co-extinctions: When a species becomes extinct, the plant and animal species associated with it in an obligatory way also become extinct. When a host fish species becomes extinct, its unique assemblage of parasites also meets the same fate. Another example is the case of a coevolved plant-pollinator mutualism where extinction of one invariably leads to the extinction of the other.

NCERT Biology · Class 12 · Chapter 13 · Paragraph 31
Practice This Concept
QuestionPractice Question

Assertion (A): Species extinctions can have cascading effects on other species. Reason (R): When a species becomes extinct, plant and animal species associated with it in an obligatory way also become extinct.

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.

88/90
of the NEET 2026 Biology paper matched from the MedicNEET question bank

MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.

88 of 90 NEET 2026 Biology questions traced to MedicNEET10,000+ Biology questionsHindi + English
Free to start · Hindi + English · 10,000+ questions · NEET 2026 pattern
Related Concepts from Biodiversity and Conservation
📘Practice all 39 NEET PYQs from Biodiversity and Conservation🔍See full Biodiversity and Conservation PYQ Analysis