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Praxis II General Science

Category - Life Science

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A species population can grow or decline over time. Which of the following is a way in which the population of a species could decline?

Drift
Increased birth rate
Emigration
Increased food sources
None of the above

Explanation

Answer: C - If a large portion of the population emigrates, or moves to another environmental niche, then the population of the species in the area would decline. Other options are diseases, new predators, or cataclysmic events (forest fire, volcano, etc.).

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