Which of the Following Is Most Clearly a Case of Density-Dependent

question 50

Multiple Choice

Which of the following is most clearly a case of density-dependent population regulation?

• A)the summer drying of savanna grass for an insect that feeds on grass sap
• B)a dangerous new flu strain that is transmitted among humans by sneezing
• C)the first hard frost of fall for a population of annual morning glory vines
• D)the occurrence of rainstorms for an opportunistic desert annual

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Definitions:

Shipbreaking

The process of dismantling an obsolete vessel's structure for scrapping or disposal.

Public Good

A product or service that is provided without profit to all members of a society, either by the government or by a private individual or organization.

Non-excludable

Characterizes goods or services that cannot easily prevent people who do not pay from consuming or using them, such as public goods.

Non-rivalrous

A characteristic of a good whereby one person's use does not diminish the utility or availability of that good for others.