The process by which two species, for example, a flower and a pollinating insect, evolve in response to each other is called .

A
punctuated equilibrium
B
convergent evolution
C
co-evolution
D
adaptive radiation

C. Co-evolution

Explanation:

In biology, coevolution occurs when two or more species reciprocally affect each other's evolution through the process of natural selection. The term sometimes is used for two traits in the same species affecting each other's evolution, as well as gene-culture coevolution

the answer is sex-linked recessive.