Cliff Swallows in Southwestern Nebraska Are Experiencing a New Natural

question 57

Short Answer

Cliff swallows in southwestern Nebraska are experiencing a new natural selection pressure; the swallows that are less agile are more likely to be killed by ________.

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Definitions:

Marginal Utility

The change in satisfaction or utility obtained by consuming an additional unit of a good or service.

Beers

Alcoholic beverages made from grain, water, hops, and yeast, typically fermented and varying widely in flavor, strength, and type.

Oysters

Marine mollusks that live in marine or brackish habitats, known for their edible, calcium-rich shells and being a delicacy in many parts of the world.

Indeterminate

Indeterminate is a term used to describe a situation or outcome that is not clearly defined or decided, leading to uncertainty.