Some Birds Follow Moving Swarms of Army Ants in the Tropics.As

question 24

Multiple Choice

Some birds follow moving swarms of army ants in the tropics.As the ants march along the forest floor hunting insects and small vertebrates,birds follow and pick off any insects or small vertebrates that fly or jump out of the way of the ants.What is the specific benefit relationship?

• A)Birds benefit from the association but have no impact on the ants.
• B)Birds benefit from the association and harm the ants.
• C)Birds and ants benefit from the association.
• D)Birds do not benefit from the association,but the ants do.
• E)Neither birds nor ants benefit from the association.

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Definitions:

Monopoly

An economic scenario where only one seller exists who offers a distinctive product to the marketplace.

Price Discrimination

A pricing strategy where different prices are charged for the same product or service in different markets or to different consumers.

Elastic Demand

A situation where the quantity demanded of a product is highly responsive to changes in its price.

Inelastic Demand

The condition when the quantity demanded of a product changes very little in response to changes in its price.