AP BIOLOGY

Detailed explanation-1: -1. hummingbirds have a beak just the right length to reach the nectar in a cardinal flower and as they feed, they touch the pollen structure, transferring pollen from one flower to another. 2. This process of hummingbirds transferring pollen from one flower to another is known as coevolution.

Detailed explanation-2: -Horse evolution shows long stable periods of little evolution interrupted by brief periods of rapid change.

Detailed explanation-3: -The term coevolution is used to describe cases where two (or more) species reciprocally affect each other’s evolution.

Detailed explanation-4: -Evolving Together Different species of hummingbirds have differently shaped beaks that evolved to allow them to drink from a certain kind of flower. In return, the flower species it feeds from has evolved to produce nectar especially tasty to hummingbirds and to prevent bees and other animals from stealing it.

Detailed explanation-5: -New species form by speciation, in which an ancestral population splits into two or more genetically distinct descendant populations. Speciation involves reproductive isolation of groups within the original population and accumulation of genetic differences between the two groups.