Which Reflects Negative Density Dependence

question 40

Multiple Choice

Which reflects negative density dependence?
I. A fungus infects and kills plants at a higher rate when they are abundant than when they are rare.
II. A group of birds has a higher per capita survival rate when it is large than when it is small.
III. A large population of deer exhausts local food supplies and has a high risk of death; a small population has plentiful food and low risk of death.

• A) I only
• B) II only
• C) III only
• D) I and II
• E) I and III

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Definitions:

Consumer Surplus

The difference between the total amount that consumers are willing and able to pay for a good or service and the total amount they actually pay.

Equilibrium Price

The market price at which the quantity of goods supplied is equal to the quantity of goods demanded, resulting in no excess supply or demand.

Willing To Pay

The maximum amount a consumer is prepared to spend on a good or service, reflecting their valuation and demand.

Maximum Prices

Price caps set by the government on certain goods and services to protect consumers from excessive prices.