Question

In the following chain, 100J of energy is available to the lion. How much energy was available to the producer?
plants -> Deer -> Lion

Answer 1

As by the principal that only 10 percent is energy transfer to next level:
================================<<<<

Here in this chain lion is at last level of food chain.
and it has energy 100 j

but here the energy will be in increased order because the food chain is given inverse.
so,
energy for deer= 100+ 100× 10/100 j
》》=100+10 j
= 110j
now for producer= 110 + 110× 10/100 j
= 110 + 11 j
= 121 j

Answer 2

Energy available to  Lion is 100JLet x be the energy  Deer.10% of x =100J x =1000J deer has received 1000J of energy.Let Y be the energy for the Grass 10%of Y=1000JY=10000J10,000 joules of energy is available to producers.