Whale 100,000 calories 200 kilocalories (kcal) Krill 1,000,000 calories 80 kcal Cellular respiration 100 + Heat kcal Feces 20 kcal Phytoplankton 10,000,000 calories Growth Figure 14.3 On average 10% of biomass is passed from one trophic level to the next. Most of the biomass at a trophic level goes to feces and cellular respiration. For example, 200 kilocalories (kcal) of energy at a trophic level will be divided among feces, growth, and cellular respiration. Questions: 2. Calculate the rate of production of biomass at each trophic level in a marine habitat. Use the information in the left column of the table to calculate the rate of production of biomass at each trophic level. Rate of Production Trophic Level of Biomass Producers 1000 g/m²/year Primary Consumers and Decomposers (produce only 20% as much g/m²/year biomass as producers) Secondary Consumers (produce only 15% as much biomass as primary g/m?/year consumers and decomposers) Tertiary Consumers (produce only 10% as much biomass as secondary consumers) g/m?/year 3. What happened to the 80% of producer biomass that was not converted to biomass in primary consumers and decomposers?

Whale 100,000 calories 200 kilocalories (kcal) Krill 1,000,000 calories 80 kcal Cellular respiration 100 + Heat kcal Feces 20 kcal Phytoplankton 10,000,000 calories Growth Figure 14.3 On average 10% of biomass is passed from one trophic level to the next. Most of the biomass at a trophic level goes to feces and cellular respiration. For example, 200 kilocalories (kcal) of energy at a trophic level will be divided among feces, growth, and cellular respiration. Questions: 2. Calculate the rate of production of biomass at each trophic level in a marine habitat. Use the information in the left column of the table to calculate the rate of production of biomass at each trophic level. Rate of Production Trophic Level of Biomass Producers 1000 g/m²/year Primary Consumers and Decomposers (produce only 20% as much g/m²/year biomass as producers) Secondary Consumers (produce only 15% as much biomass as primary g/m?/year consumers and decomposers) Tertiary Consumers (produce only 10% as much biomass as secondary consumers) g/m?/year 3. What happened to the 80% of producer biomass that was not converted to biomass in primary consumers and decomposers?

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter22: Prokaryotes: Bacteria And Archaea

Section: Chapter Questions

Problem 3VCQ: Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing...

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