Practice Quiz

CLEP Biology Practice Exam

Category - Biology

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The willow flycatcher is a bird species with a summer range throughout much of the United States. Which of the following would directly decrease the size of a willow flycatcher population in a given year?
  1. the disappearance of a species that preys on willow flycatchers
  2. the arrival of migrating willow flycatchers from populations in
    other areas
  3. the emigration of male willow flycatchers that did not secure
    territories
  4. the hatching of a larger percentage of eggs in the willow flycatcher population
Explanation
Answer: C - the emigration of male willow flycatchers that did not secure territories.
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