URGENTLY NEEDED, HANDWRITTEN ONLY Plants absorb 340000 kcal/m2 /yr sunlight incident on a community in the region. The absorbedlight results in a net plant production of 8833 kcal/m2 /yr and evapotranspiration of 11977 kcal/m2/yr. The herbivores consume 3368 kcal/m2 /yr of plant mass and additional intake of 536 kcal/m2/yrfrom other sources respiring 1760 kcal/m2 /yr of it. 1478 kcal/m2 /yr die of natural causes with theremaining eaten up by the carnivores, provide a net production of 37 kcal/m2 /yr for this highertropic level with respiration of the former level amounting to 216 kcal/m2/yr. Estimate the trophicefficiencies for the producers, primary and secondary consumers of this food chain.

Answered: Plants absorb 340000 kcal/m2 /yr…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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URGENTLY NEEDED, HANDWRITTEN ONLY

Plants absorb 340000 kcal/m2 /yr sunlight incident on a community in the region. The absorbed
light results in a net plant production of 8833 kcal/m2 /yr and evapotranspiration of 11977 kcal/m2
/yr. The herbivores consume 3368 kcal/m2 /yr of plant mass and additional intake of 536 kcal/m2/yr
from other sources respiring 1760 kcal/m2 /yr of it. 1478 kcal/m2 /yr die of natural causes with the
remaining eaten up by the carnivores, provide a net production of 37 kcal/m2 /yr for this higher
tropic level with respiration of the former level amounting to 216 kcal/m2/yr. Estimate the trophic
efficiencies for the producers, primary and secondary consumers of this food chain.

Expert Solution

Step 1 Trophic Efficiency

The term trophic efficiency can be defined as the efficiency of organisms of a certain trophic level to transfer biomass or energy from its immediate lower trophic level.

In a ecosystem:

Plants are producers

Herbivores are primary consumers

Carnivores are secondary consumers

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