Match the description with the correct term! Terms:
adaptive radiation
homologous structures
biological barrier to reproduction
speciation
theory of natural selection
gradualism

- the idea that different mating calls of birds used during mating season has led to different species of birds

- a model suggesting the gradual change of a species in a linear fashion to form distinct species

- organisms that have a common ancestry but develop body parts that perform different functions

- two populations become reproductively isolated (can no longer reproduce successfully)

- the idea that inherent variation in a population allows for certain traits to be selected for and carried on to future generations of the population experiencing an environmental pressure

- a common ancestor diversifies and the various species all have different adaptations