Summarize the following three methods that could produce a new species from an existing species and provide examples, in 700 to 1050 words. Include a summary and specific examples:

Summarize the following three methods that could produce a new species from an existing species and provide examples, in 700 to 1050 words. Include a summary and specific examples:

Allopatric speciation
Sympatric speciation
Polyploidy

Include at least three references.

Format your paper consistent with APA guidelines.