Geographic Isolation

Members of a population of fox got separated when a river formed in their habitat. Over time, they became two separate species. This is ______ isolation.

• Temporal

• Behavioral

• Geographic

• Sympatric

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The river in this image might cause __.

• Behavioral Isolation

• Temporal Isolation

• Geographic isolation

• Natural selection

For speciation to occur, there must be some sort of __.

• environment change

• separation of the original species

• mutation to a gene

• major disaster

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Separation based on a physical barrier

• temporal

• geographic

• behavioral

• mechanical

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What is the primary cause of geographic isolation in a population?

• Climate change

• Physical barriers

• Genetic mutations

• Behavioral differences

Which of the following is an example of geographic isolation?

• A mountain range separating two populations

• Different mating seasons

• Different courtship rituals

• A mutation in a gene

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How does geographic isolation contribute to speciation?

• By increasing genetic diversity

• By preventing gene flow between populations

• By causing immediate extinction

• By enhancing behavioral adaptations

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Which scenario best illustrates geographic isolation leading to speciation?

• A river divides a population of rabbits, leading to two distinct species over time

• Birds migrating to a new area

• Fish adapting to different water temperatures

• Insects developing resistance to pesticides

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What role do physical barriers play in geographic isolation?

• They facilitate gene flow

• They prevent interbreeding between separated populations

• They increase genetic mutations

• They enhance survival rates

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Which of the following is NOT a result of geographic isolation?

• Formation of new species

• Increased genetic diversity within a single population

• Reduced gene flow

• Adaptation to different environments

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