The amount of energy at trophic levels one and four in an ecosystem is indicated by the numbers. Only 10% of the energy is passed on to the next trophic level.

What is the total amount of energy in levels two and three?

1100

Explanation:

There is 10% of total energy in each increasing trophic level.                    10,000 / 10 = 1,000 ,so there are 1,000 units of energy in trophic level 2.

1,000 / 10 = 100, so there are 100 units of energy in trophic level 3.

1,000 + 100 units of combined energy would be 1,100 units of energy.

Hope this helps!

we would need to see the picture to answer it