Explain the energy flow upto secondary consumers in an ecosystem, if the producers produce $20, 000 kcal$ of energy. $[3 marks]$

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Solution

Only $10 %$ of energy flows from one trophic level to another.
$[1 mark]$
If $20, 000 kcal$ of energy is synthesised by the producers, its $10 %$ , i.e; $2, 000 kcal$ is received by the primary consumers.
$[1 mark]$
And, only $10 %$ of the energy received by the primary consumers is received by the secondary consumers, i.e; $200 kcal$ , and so on.
$[1 mark]$

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Similar questions

Energy enters in a food chain through :

(a) primary consumers

(b) secondary consumers

(d) producers.

Give Scientific reasons.

1. Plants in an ecosystem are called producers.

2. The flow of energy in an ecosystem is unidirectional.

3. The flow of nutrients in an ecosystem is cyclic.

4. Decomposers are crucial biotic factors in any ecosystem.

20, 000 kcal

[2 marks]

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