A Population of Squirrels Becomes Divided into Two Halves by a Flooding

question 50

Multiple Choice

A population of squirrels becomes divided into two halves by a flooding river. Over time, the river becomes larger and the populations are not able to interact for many years. Which of the following is the most likely outcome?

• A) Both groups will become increasingly generalist
• B) Geographic isolation may lead to speciation
• C) Reproductive isolation may lead to speciation
• D) Both species may become extinct
• E) One group will be considered native and the other will be considered non-native

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