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Question #46069
The Question
Read the following statements correlating ecological succession with the 'Evil Quartet' of biodiversity loss. Which of the following statements is INCORRECT?
Options
- A.
Climax communities harbor species with narrow niche breadths, paradoxically increasing their vulnerability to co-extinction during rapid environmental shifts.
- B.
Pioneer species are typically generalists, making them less susceptible to obligate co-extinction cascades compared to climax species.
- C.
The high ecosystem stability of a climax community provides its highly specialized mutualists with high evolutionary plasticity to survive sudden environmental stochastics.
- D.
The extinction of a highly specialized host plant in a climax forest will inevitably lead to the co-extinction of its obligate pollinator insect.
Check Your Answer
Correct Answer
Step-by-Step Solution
Explanation
How the Examiner Thinks
Regulatory_Failure
Understand how NOT, EXCEPT, and logical constraints are used to manipulate exam results.
Concepts Behind This Question
Yucca moth|Yucca plant|Co-evolution
Why This Question Is Tricky
Common Mistakes
Conceptual Pivot: Students often conflate 'Ecosystem Stability' (a macro-level property of climax communities) with 'Evolutionary Plasticity' (a micro-level property of individual species).
The common misconception is assuming that because a climax community is 'stable', its species are highly adaptable and immune to extinction.
The trap exposes the biological paradox: high ecosystem stability arises from complex, specialized interactions, which inherently carry a high risk of co-extinction (the domino effect) if a key species is removed by rapid environmental changes.
Quick Facts About This Question
Question Information
| Subject | Biology |
| Chapter | Biodiversity and Conservation - Class 12 |
| Concept | Co-extinction Logic |
| Difficulty | 8 |
| Cognitive Load | 5 |
| Target Solve Time | 120 sec |
| Access | Free |