Populations of Cliff Swallows in Nebraska Have Experienced a Significant

question 44

Essay

Populations of cliff swallows in Nebraska have experienced a significant decrease in the number
of road kills over the past 30 years. Describe two alternate hypotheses that could explain this observation, one that relies on natural selection and one that does not, and explain how you would
test these hypotheses.

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Definitions:

Habitual Snorers

Individuals who regularly snore during sleep, often indicating disrupted breathing patterns that could suggest sleep-related disorders.

Percent

A part or other object per hundred, used in expressing ratios, fractions, or comparison between parts.

Internal Disease

A disease affecting one or more internal organs of the body.

Larynx

A voice box located in the throat responsible for producing sound.