GCEBiologyEcology2024

Which of the following best describes a food chain?

AA network of feeding relationships among organisms in an ecosystem
BA linear sequence showing the transfer of energy from one organism to anotherCORRECT
CThe total amount of organic matter produced by plants in an ecosystem
DThe cycling of nutrients between living organisms and the physical environment
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Why the answer is B, and why the others tempt you.
A food chain is a linear sequence that shows how energy and nutrients are transferred from one organism to another through feeding relationships, starting from producers to consumers. Option A describes a food web, Option C describes gross primary productivity, and Option D describes nutrient cycling.
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