Use the Following Description to Answer the Question

question 35

Multiple Choice

Use the following description to answer the question.
On the volcanic, equatorial West African island of Sao Tomé, two species of fruit fly exist. Drosophila yakuba inhabits the island's lowlands and is also found on the African mainland, located about two hundred miles away. At higher elevations, and only on Sao Tomé, is found the very closely related Drosophila santomea. The two species can hybridize, though male hybrids are sterile. A hybrid zone exists at middle elevations, though hybrids there are greatly outnumbered by D. santomea. Studies of the two species' nuclear genomes reveal that D. yakuba on the island is more closely related to mainland D. yakuba than to D. santomea (2n = 4 in both species) . Sao Tomé rose from the Atlantic Ocean about 14 million years ago.
Using only the information provided in the paragraph, which of the following is the best initial hypothesis for how D. santomea descended from D. yakuba?

• A) allopolyploidy
• B) autopolyploidy
• C) habitat differentiation
• D) sexual selection

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Definitions:

Librarian

A professional responsible for managing collections of books and other informational resources in libraries, facilitating access to information.

Social Comparison

It's a theory that suggests people determine their own social and personal worth based on how they stack up against others.

Allocentric

A viewpoint or behavior that is centered on others rather than oneself.

Disagreements

Situations or instances where two or more parties have different opinions, perspectives, or preferences that do not align, leading to conflict or debate.