Question

calculate amount of energy available to lion in following food chain if plants have 20000 j energy plants deer lion also explain why?​

Answer 1

Well here is your answer

Plants can trap only 1% of the sun's energy falling on them. Now , 1% of 20000 J is 200 J, so the plants have actually 200 J of energy available in them as food (The 10 per cent law does not apply at this stage).

The plants are eaten up by deer. Now, according to 10 per cent law, 10% of 200 J, that is 20 J of energy will be available in deer as flesh food.

The deer will transfer 10% of its 20 J energy to the lion. Thus, The food energy available to the lion will be 10% of 20 J which comes to 2 J.

The above results can be shown more clearly as follows :

Sun 20,000J(1%absorbed)

Plant200J-----10% of 200JDeer

20J−→−−−−−10% of 20 J Lion2 J

This Law is also known as Lindemann's Law

Hope this helps you.

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