From Studying Ecosystems and Biomes,it May Seem as If There

question 80

Essay

From studying ecosystems and biomes,it may seem as if there is complete "bottom up" control,that the producers determine the life and success of the ecosystem.Yet closer examination shows "top down" control by the third trophic level is essential as well.Evaluate why this is so,citing at least one good example.

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Definitions:

Cost Function

A mathematical relationship that describes how the costs incurred by a company vary with the level of output or production.

Cartel Arrangement

An agreement among competing firms in the same industry to control prices, limit output, or divide markets, in order to maximize profits collectively.

Manufacturing Plant

A facility that is equipped with machinery and staff for the purpose of producing goods on a large scale.

Cost Function

A mathematical relationship that describes how the total cost of production changes with varying levels of output.