7.4 Trophic levels in an ecosystem (biology only)

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Question 2
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An innovative vertical farming facility uses organic vegetable pulp waste from a commercial juicing plant to rear black soldier fly (BSF) larvae. These protein-rich larvae are harvested, dried, and processed into feed pellets for free-range laying hens.

a.

Sketch a pyramid of biomass for the food chain described that results in biomass for the laying hens. Label all three levels of the pyramid.

[2]
b.

Describe two reasons why the biomass of the black soldier fly larvae consumed by the laying hens is not all converted into biomass of the hens.

[3]
c.

Explain how rearing poultry on insect larvae fed on organic vegetable waste, rather than using traditional soy meal grown on deforested land, can improve human food security in the future.

[4]

7.4 Trophic levels in an ecosystem (biology only) Questions

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