Answer:
sympatric speciation and habitat differentiation
Step-by-step explanation:
Sympatric speciation is a process that produces new species that evolved from a single ancestral species while both continue inhabiting the same geographical area. Therefore, sympatric species have distribution ranges that overlap each other. Habitat differentiation can be defined as the mechanism by which sympatric speciation events produced by mutations in a given population enable the new species to exploit different conditions (i.e., habitats) within the same environment. In biogeography, habitat differentiation is fundamental because this process increases the number of species that coexist in the same geographic area.