All of the Following Are Characteristic of Lichens EXCEPT

question 39

Multiple Choice

All of the following are characteristic of lichens EXCEPT

• A) they are arranged in foliose, fruticose, or crustose morphologies.
• B) they are a major food source for tundra herbivores.
• C) they are a symbiotic relationship of a fungus and a protozoan.
• D) they serve as primary producers in rocky ecosystems.
• E) they are used as indicators of air pollution.

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Definitions:

Monopolistic Competition

A market structure characterized by many firms offering products that are similar but not identical, leading to competition based on quality, price, and marketing.

Long-Run Cost Curve

A graph showing the lowest cost at which a firm can produce any given level of output in the long run, when all factors of production are variable.

Average Total Cost

The total cost of production (including fixed and variable costs) divided by the number of units produced, indicating the per-unit cost of production.