MacArthur Observed That Five Species of Similar Warblers Coexisted on Spruce

question 45

Multiple Choice

MacArthur observed that five species of similar warblers coexisted on spruce trees,in feeding guilds,because they

• A)ate different kinds of insects.
• B)were kept below their carrying capacities by predators.
• C)foraged in different places on the tree.
• D)cooperated in their foraging habits.

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Definitions:

Price Elasticity Of Supply

The percentage change in quantity supplied, divided by the percentage change in the price that caused the change in quantity supplied.

Immobile Factor

Refers to a factor of production that cannot easily be moved from one place to another, such as land or a fixed installation.

Supply Of Resource

The total amount of a commodity, product, or service available for use, sale, or distribution.

Oil

A fossil fuel used primarily for energy production and as a raw material in the manufacture of plastics and other important chemicals.