Multiple Choice
Which of the following communities would likely have the highest species diversity?
51. Community Ecology
Geographic Impact on Communities
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In which location would a population most likely be geographically isolated?
A
A plain in the countryside
B
A forest near a river
C
A city in a valley
D
An island in the ocean
Verified step by step guidance1
Understand the concept of geographic isolation: Geographic isolation occurs when a population is separated from exchanging genetic material with other organisms of the same species, often due to physical barriers.
Identify the key characteristics of geographic isolation: Look for features that prevent or significantly reduce the movement of individuals between populations, such as bodies of water, mountains, or other natural barriers.
Analyze each location option: Consider how each location might contribute to geographic isolation. For example, a plain in the countryside might not have significant barriers, while a forest near a river might have some barriers but not complete isolation.
Evaluate the isolation potential of a city in a valley: A valley might provide some isolation due to surrounding mountains, but human activity in a city could facilitate movement and reduce isolation.
Consider the isolation effect of an island in the ocean: An island is surrounded by water, which acts as a significant barrier to movement, making it the most likely location for geographic isolation among the given options.
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