Use the Graph and Information Provided in the Paragraph Below

question 35

Multiple Choice

Use the graph and information provided in the paragraph below to answer the following questions.
Flycatcher birds that migrate from Africa to Europe feed their nestlings a diet that is almost exclusively moth caterpillars. The graph below shows the mean dates of arrival, bird hatching, and peak caterpillar season for the years 1980 and 2000.

-The shift in the peak of caterpillar season is most likely due to

• A) pesticide use.
• B) earlier migration returns of flycatchers.
• C) an innate change in the biological clock of the caterpillars.
• D) global warming.
• E) acid precipitation in Europe.

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Definitions:

Golden-Collared Manakins

A species of bird known for the male's vibrant yellow throat plumage and their unique courtship dances.

Sexually Selected Ornaments

Physical traits evolved through sexual selection, often used to attract mates or compete with members of the same species, such as the colorful plumage of many birds.

Female Choice

A form of sexual selection where females choose their mates, often based on traits that indicate the male's genetic quality or fitness.

Cost of Sexual Reproduction

The energy and resources expended by organisms to produce offspring through sexual means, as opposed to asexual reproduction, which often incurs less cost.