Question

If in a food chain, 1200 kJ of energy had
fallen on the green parts of a plant, then
the difference in the amount of energies
that are gained by primary and
secondary consumers is​

Answer 1

Answer:

The difference in the quantity of energies that are gained by primary and secondary consumers is 108kj

Explanation:

Only 10% of energy is transported to each trophic level from its lower trophic level, according to the 10% law.

If 1200kJ of energy is available to the producer, then only 120kJ of energy will be available to the primary consumer, and only 12kJ of energy will be available to the secondary consumer.

• The amount of energy present in the producer=1200kJ
• Then by the 10% law, the amount of energy transferred to the primary consumer is  = 1200× $\frac{10}{100}$ =120kj
• Only 120kJ is transferred from to primary consumer level.
• In the case of secondary, about 10% of energy from the primary consumer is transferred to the secondary consumer i.e 120× $\frac{10}{100}$ =12kJ
• That means only 12kJ of energy moves to the secondary consumer
• The difference between the quantity of energy acquired by main and secondary users is then, 120-12 =108kJ

Answer 2

Answer:

The difference in the quantity of energies that are gained by primary and secondary consumers is 108kj

Explanation:

Only 10% of energy is transported to each trophic level from its lower trophic level, according to the 10% law.

If 1200kJ of energy is available to the producer, then only 120kJ of energy will be available to the primary consumer, and only 12kJ of energy will be available to the secondary consumer.

The amount of energy present in the producer=1200kJ

Then by the 10% law, the amount of energy transferred to the primary consumer is  = 1200×  =120kj

Only 120kJ is transferred from to primary consumer level.

In the case of secondary, about 10% of energy from the primary consumer is transferred to the secondary consumer i.e 120×  =12kJ

That means only 12kJ of energy moves to the secondary consumer

The difference between the quantity of energy acquired by main and secondary users is then, 120-12 =108kJ

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