Multiple Choice
Which of the following statements about NPP & GPP is true?
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52. Ecosystems
Energy Flow Through Ecosystems
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Using the data in this table, calculate the: Net production efficiency of insects.
A
19%
B
73%
C
27%
Verified step by step guidance1
Understand the concept of Net Production Efficiency (NPE), which is the ratio of net production to the assimilated energy. It is expressed as a percentage.
Identify the relevant data from the table: Gross insect production (assimilated) is 520 kcal/(m²*yr) and Net insect production is 102 kcal/(m²*yr).
Use the formula for Net Production Efficiency: \( \text{NPE} = \left( \frac{\text{Net insect production}}{\text{Gross insect production (assimilated)}} \right) \times 100 \).
Substitute the values from the table into the formula: \( \text{NPE} = \left( \frac{102}{520} \right) \times 100 \).
Calculate the result to find the Net Production Efficiency of insects, which will give you the percentage value.
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