Question

Justify the statement that “Flow of energy in a food chain is unidirectional”. Explain by taking

example of food chain (3 marks)
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Answer 1

Answer:

Using food chain

Explanation:

for example the food chain

grass->deer->lion

the energy transfer is from grass to deer and then from deer to lion.

Answer 2

Answer:producers uses sunlight and produces food, it is taken by primary consumers then secondary consumer and tertiary consumer. Energy will only flow in this direction not in reverse because consumers cannot convert sunlight into food energy

Explanation: eg: grass——> grasshopper ——> frog——> snake