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The rivet popper hypothesis compares an ecosystem to an airplane and species to its:

AWings
BPilots
CSeats
DRivets
Answer & Solution
Correct answer: D. Rivets
1. Each passenger pops out one rivet. 2. Losing too many weakens the plane. 3. The rivets stand for species. _Source: syllabus Biology, Chapter 15, Biodiversity and Conservation._
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