How much energy the producer trophic level will have if the amount of energy available at the third trophic level is 10 J ?

 

Correct option is C

In an ecological energy pyramid, energy decreases as you move up the trophic levels. Typically, about 90% of energy is lost at each trophic level due to factors like metabolism and heat. The remaining 10% is passed on to the next level.

If the energy available at the third trophic level is 10 J, we can work backward:

• At the second trophic level, there would be 10 J ×10=100 J

• At the first trophic level (the producer level), the energy would be 100 J ×10 = 1000 J

So, the energy available at the producer level would be 1000 J.