Answer:
Coevolution
Explanation:
Coevolution refers to the mechanism where two or more species interact by the evolutionary process of natural selection. The mechanism of coevolution was mentioned by Darwin to explain the existing interactions among flowering plants and insects, in a similar manner to the example above described. Examples of coevolution also include the race between pathogenic organisms and the immune responses or the emergence of resistance in pathogens that affect genetically modified (originally resistant) crop varieties.