Trophic Efficiency Is

question 4

Multiple Choice

Trophic efficiency is

• A) the ratio of net secondary production to assimilation of primary production.
• B) the percentage of production transferred from one trophic level to the next.
• C) a measure of how nutrients are cycled from one trophic level to the next.
• D) usually greater than production efficiencies.
• E) about 90% in most ecosystems.

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MU/P Ratio

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