Question

In food chain given below ; if the amount of energy available at fourth trophic level is 5 kj ; what was the energy available to producer level ? Food chain : grass -> grasshopper->frog -> snake -> hwak

Answer 1

hi mate

here is your answer

We know

ACCORDING TO 10 PERCENT LAW

1)During the transfer of energy from organic food from one trophic level to the next, only about ten percent of the energy from organic matter is stored as flesh.

this will be used in this FOOD CHAIN.

Now, food chain is

grass->grasshopper->frog ->snake->hawk

so energy available to forth trophic

level, Snake =5 kj.

So energy available to frog= 10 percent of 50kj

energy available to grasshopper=10 percent of 500kj

energy available to grass =10 percent of 5000 kj

hence energy available to PRODUCER LEVEL(GRASS) is 5000KJ

HOPE IT HELPS

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