Why Are Most Food Chains Limited to Three to Five

question 57

Multiple Choice

Why are most food chains limited to three to five trophic levels?

• A)The higher the trophic level, the larger the organism; the larger the organism, the less likely it will be prey.
• B)The nutritional quality of existing biomass decreases with increasing trophic level.
• C)Most ecosystems have insufficient space to support the increased number of organisms that more trophic levels would require.
• D)There is insufficient energy to support more trophic levels.

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Definitions:

Book Value

The value of an asset as recorded on the balance sheet, calculated as the cost of the asset minus accumulated depreciation.

Variable Cost

Costs that vary directly with the level of production or sales, such as materials and labor.

Net Book Value

The difference between the cost of a fixed asset and its accumulated depreciation.

Differential Effect

The financial impact of choosing one option over another in decision-making scenarios, focusing on differences in costs and benefits.