What is instantaneous speciation?

an interdependent relationship between two or more species

a type of speciation that only occurs on islands

the formation of a new species over a few generations

a type of speciation that leads to rapid extinction

Instantaneous speciation; the formation of a new species over a few generation.

Explanation:

This is a type of speciation where new species are produced which are separated from the parental individual by biological or geographical barrier. This type of speciation occur among individual and not in a population. It is a kind of sympatric speciation which is caused by poliploidy.