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Question #135817

Difficulty: 8/10 | 🟢 Free

The Question

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): Even if a biodiversity hotspot is strictly protected under the mandates of the Convention on Biological Diversity (CBD), a plant species with an obligate pollinator can still face rapid local extinction. Reason (R): In-situ conservation primarily ensures habitat preservation, but it cannot prevent co-extinction if the obligate mutualist's population crashes due to trophic efficiency limits.

In the light of the above statements, choose the most appropriate answer from the options given below:

Options

A.
Both (A) and (R) are correct and (R) is the correct explanation of (A).
B.
Both (A) and (R) are correct but (R) is not the correct explanation of (A).
C.
(A) is correct but (R) is not correct.
D.
(A) is not correct but (R) is correct.

Check Your Answer

Correct Answer

Step-by-Step Solution

Explanation

How the Examiner Thinks

Evolutionary_Exception

Tackle problems where standard rules evolve or change based on specific environmental constraints.

Concepts Behind This Question

Obligate_Mutualism|Energy_Transfer|Co-extinction Logic

Why This Question Is Tricky

Examiner Levers

Logical Assertion

Tests the causal relationship between two true statements.

Difficulty Boost : +4

Common Mistakes

Conceptual Pivot: Students often harbor the misconception that 'strict protection' (In-situ conservation) guarantees the survival of all species within that geographical area.

The trap lies in failing to recognize that the 'Evil Quartet' (specifically Co-extinction) can operate independently of habitat loss.

Even a pristine, CBD-compliant habitat cannot save a species if its obligate mutualist goes extinct.

Quick Facts About This Question

Question Information

Subject	Biology
Chapter	Biodiversity and Conservation - Class 12
Concept	World Summit on Sustainable Development
Difficulty	8
Cognitive Load	5
Target Solve Time	120 sec
Access	Free