Experiments in Which Nitrogen Supplementation Increased the Biomass of Both

question 40

Multiple Choice

Experiments in which nitrogen supplementation increased the biomass of both plants and herbivores show ____.

• A) bottom-up control
• B) top-down control
• C) indirect control
• D) inverted cascades
• E) nutrient cycling

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Definitions:

Productive Efficiency

A situation where goods and services are produced at the lowest possible cost and resources are utilized most effectively.

Allocative Efficiency

A state of resource allocation where goods and services are distributed according to consumer preferences and in a way that maximizes social welfare.

Marginal Cost

The uptick in cost associated with producing an extra unit of a product or service.

Allocative Efficiency

A state of the economy in which production represents consumer preferences; in other words, every good or service is produced up to the point where the last unit provides a benefit to consumers exactly equal to the cost of producing it.