What is 10% law? give an …

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What is 10% law? give an example.

Posted by Nitin Tiwari 5 years, 8 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 8 months ago

As we pass from one trophic level to the next, only 10% of energy is transferred from the first trophic level to the next. This is because a lot of energy is lost to the surroundings and rest is utilised by the organism.

We can understand this better using an example.

When green plants are eaten by primary consumers, lot of energy is lost as heat to the environment. Some energy is used by the consumer into doing work and digestion whereas rest is used for growth and reproduction. About 10% of the eaten food is turned into its body and made available to the next level of consumers. So the actual energy passing to the next trophic level is only 10%.

Grass -> Grasshopper -> Frog -> snake -> hawk

1Thank You

Aswani Soni 5 years, 8 months ago

When third consumer like lion eat second consumer like dear the ten % energy gain by second consumer and all 90% enery is loosed

1Thank You

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Posted by Pandey Ji 4 months, 2 weeks ago

CBSE > Class 10 > Science