Question

The origin of polar bears was the result of?

1) Allopatric speciation
2) Monopatric speciation
3) Sympatric speciation
4) Polypatric speciation
5) Peripatric speciation

Answer 1

Allopatric speciation occurs when two populations become isolated from one another and continue to evolve. Geographic barriers, such as mountains or rivers, can create this isolation. An example of allopatric speciation is the different species of squirrel found on the two sides of the Grand Canyon.

Step-by-step explanation:

Speciation is the process of the rise of a new species in response to an environmental change or pressure. Allopatric speciation, which is the most common form of speciation event, occurs when two populations become isolated from one another and continue to evolve. This isolation is created by geographic barriers such as mountains, rivers, or oceans. An example of allopatric speciation is the different species of squirrel found on the two sides of the Grand Canyon, which became reproductively isolated from one another by the canyon, leading to the eventual formation of different species.