Two species, A and B, inhabit a forest. Species A has:
• Wide geographic range
• High genetic variability
• Large population size Species B has:
• Narrow range
• Low genetic diversity
• Specialised pollinator relationship.
Predict the likely outcome:
1. Species A is more vulnerable to extinction due to wide range 
2. Species B risks co-extinction due to specialised interactions 
3. Species A will outcompete B due to high genetic diversity 
4. Species B is evolutionarily stable due to small population
Subtopic:  Loss of Biodiversity |
 58%
Level 3: 35%-60%
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Below are four regions. Eliminate regions that fail either endemism or high threat, then pick the one that must be a hotspot.
1. Region with high species richness but very low threat 
2. Region with high endemism and severe habitat loss 
3. Region with high threat but extremely low endemism 
4. Region with moderate species richness and low endemism
Subtopic:  In Situ Conservation of Biodiversity |
 68%
Level 2: 60%+
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Two populations of the same species inhabit two different environments:
- Population A lives in a highly unpredictable habitat with fluctuating resources.
- Population B lives in a stable habitat with predictable resources and strong biotic interactions.

Which combination of reproductive strategies is MOST likely to evolve?
1. A → few large offspring once; B → many small offspring repeatedly
2. A → many small offspring once; B→ repeated breeding with few large offspring
3. A → repeated breeding with large offspring; B → single-breeding with small offspring
4. Both A and B evolve identical strategies because fitness relies on species, not habitat
Subtopic:  Biodiversity Patterns |
 56%
Level 3: 35%-60%
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