Multiple Choice
Which of the following is the first step in allopatric speciation?
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23. Speciation
Allopatric and Sympatric Speciation
Multiple Choice
Which of the following organisms is most likely to be subject to allopatric speciation?
A
A population of mammals sharing the same habitat
B
A population of fish living in the same lake
C
A population of insects in a single forest
D
A population of birds separated by a mountain range
Verified step by step guidance1
Understand the concept of allopatric speciation: Allopatric speciation occurs when a population is divided by a geographical barrier, leading to the evolution of new species due to genetic divergence.
Identify the key factor in allopatric speciation: The presence of a physical barrier that separates populations, preventing gene flow between them.
Analyze each option: Consider whether there is a geographical barrier that could lead to the separation of populations.
Evaluate the given options: A population of mammals, fish, or insects sharing the same habitat or environment is unlikely to experience allopatric speciation because there is no physical separation.
Determine the correct scenario: A population of birds separated by a mountain range fits the criteria for allopatric speciation, as the mountain range acts as a geographical barrier, potentially leading to genetic divergence and speciation.
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