A Population of Birds Migrating to Winter Nesting Grounds Is

question 69

Multiple Choice

A population of birds migrating to winter nesting grounds is blown off course by a late -season hurricane and ends up on an island that is uninhabited by any animal species. Which of the following represents a density-independent factor that will limit the population size?

• A) Abundant fruit trees
• B) Abundant berry bushes
• C) Nightly temperature dropping below freezing
• D) Heavily wooded
• E) Freshwater spring

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Definitions:

Bundle

A collection of goods or services that are sold together.

Marginal Rate of Substitution

The rate at which a consumer is willing to give up some amount of one good in exchange for another good while keeping the same level of utility.

Consumption Doubled

A scenario where the amount of goods or services consumed by an individual or within an economy is increased by 100%.

Perfect Substitutes

Goods or services that can be used in exactly the same way and are interchangeable in consumption or production.