Species numbers shift a little, yet overall biodiversity stays roughly constant. That dynamic state is called:
AErosion now
BExpansion
CEquilibrium
DExtinction
Answer & Solution
Correct answer: C. Equilibrium
1. Nothing is frozen; individual species rise and fall.
2. The overall diversity nevertheless stays about the same.
3. That state is equilibrium.
_Source: OpenStax Concepts of Biology, Chapter 20, Ecosystems and the Biosphere._
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