Question

Choose the correct answers from the alternatives given.
Evolution of a new species by events that involve its splitting from an ancestral species can occur via

• A. allopatric speciation
• B. cladistic speciation
• C. instantaneous speciation
• D. all of these

Answer 1

The correct option is D all of these

1. Allopatric speciation, also known as geographic speciation, is speciation that occurs when biological populations of the same species become isolated due to geographical changes such as mountain building or social changes such as emigration.
   
2. The cladistic species concept defines species as the group of organisms between two speciation events, or between one speciation event and one extinction event, or (for living species) that are descended from a speciation event.
   
3. Instantaneous speciation refers to the “Sudden/Abrupt development of new species”, which is reproductively and ecologically isolated from the parental species.

So the correct option is D, all of these.