Final answer:
Coevolution is the process of evolution in which different species that are in a close relationship evolve adaptations that complement each other.
Step-by-step explanation:
Coevolution is the process of evolution in which different species that are in a close relationship evolve adaptations that complement each other. It occurs when two interacting species evolve together, with each species influencing the other's evolution. Examples of coevolution include predators evolving with their prey and parasites evolving with their hosts.