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CSS Zoology QUESTION #1348
Question 1
The evolution of ecologically related species is sometimes co-ordinated such that each species exerts a strong selective influence on others. This is:
  • Coexistence
  • Coevolution✔️
  • Mutualism
  • None of these
Correct Answer Explanation
Coevolution is the process by which two or more species reciprocally affect each other's evolution through natural selection. Classic examples include plant-pollinator relationships, predator-prey arms races, and host-parasite interactions. Mutualism is a type of symbiosis (both benefit) that can result from coevolution, but coevolution is the broader evolutionary process.