Plants pollinated by the hummingbird do not receive pollen from plants pollinated by the bumble bee is an example of mechanical isolation.
Physical incompatibility between the reproductive systems of two species is referred to as mechanical isolation. Prezygotic barriers like mechanical isolation prevent fertilization, which prevents reproduction. Any physical barrier that precludes mating is considered mechanical isolation.
The separation between white sage and black sage is among the most known instances of mechanical isolation in plants. The two sage species can't interbreed because they depend on distinct pollinators, although having a similar geographic area.
To learn more about mechanical isolation click here,
https://brainly.com/question/14960240
#SPJ4
