Which of the following factors would be the most likely to contribute to allopatric speciation?

• A. Temporal isolation
• B. Ecological isolation
• C. Geographic isolation
• D. Behavioral isolation

Answer: (C)

Verified step by step guidance

1. Understand the concept of allopatric speciation: Allopatric speciation occurs when a population is divided by a geographical barrier, leading to the formation of new species due to physical separation.
2. Identify the key factor in allopatric speciation: Geographic isolation is the primary factor that contributes to allopatric speciation, as it physically separates populations, preventing gene flow.
3. Differentiate between types of isolation: Temporal, ecological, and behavioral isolation are forms of reproductive isolation that occur without physical separation, thus they are not the main contributors to allopatric speciation.
4. Recognize the role of geographic barriers: Geographic barriers such as mountains, rivers, or distances can lead to populations evolving independently, eventually resulting in speciation.
5. Conclude why geographic isolation is the most likely factor: Since allopatric speciation is defined by physical separation, geographic isolation is the most direct and likely contributor to this process.