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Why are food chains limited to 4-5 tropic levels?

Why are food chains limited to 4-5 tropic levels?<br/>

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This question is part of IB Biology Chapter 4: Ecology
Asked by Videosbym, Last updated: Jan 28, 2020

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Matz Lewis Clark

Traveler and writer by profession.

Matz Lewis Clark, College student, Graduation, Orlando

Answered Jul 18, 2019

The correct answer to this question is energy loss. As each level is progressed through, the organism on the scale will lose any energy that may have been gained from the previous trophic. Wasted material and life processes are the cause of energy loss. There are seven of them, and MRS GREN is how one can remember them. M stands for movement, R, for respiration, S for sensitivity, G for growth, R for reproduction, E for excretion, and N for nutrition. All of these are reasons why, thr...Read More
 

J. Harty

Have keen interest in writing, traveller by heart.

J. Harty, Writer, M.A, Chula Vista

Answered Feb 26, 2019

Food chains are limited to 4-5 trophic levels because energy losses between trophic levels restrict the length of food chains and the biomass of higher trophic levels. The energy added to the biomass by each successive trophic level is less than the one before, and is therefore reduced further in each successive trophic level. Most of the energy in food that is digested and absorbed by organisms in a trophic level is later released in respiration for use in cell activities; It is ther...Read More
 

videosbym

Videosbym

Answered Nov 19, 2017

Energy losses between trophic levels restrict the length of food chains and the biomass of higher trophic levels, energy losses, restrict the length of food chains, restrict length food chains, restrict biomass of higher trophic levels, biomass of trophic levels, 10%, ten percent, 10 percent, The energy added to biomass by each successive trophic level is less, energy added is less, successive trophic level, Most of the energy in food that is digested and absorbed by organisms in a trophic...Read More
 

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