Answer:
Co-evolution best describes the type of relationship shown below
Step-by-step explanation:
Co evolution can also be termed as the common adaptation of two or more species, their genes, traits and the as a group or pair of organs. Due to the same pressure on both the species it occurs, when they undergo same natural selection. The humming bird is also the same example, which has been adapted to the various shapes of the beaks that are used to extract the nectar and flowers are evolved to generate tasty nectar for these humming bird.