Question

If there are 1,000 kilocalories of energy available at the

producer level, how much energy will be available at the 3rd
consumer level?

Answer 1

1 kcal, this is because it decreases by 10% after each level. so at the primary consumer level, it would be 100, secondary consumer = 10, and tertiary consumer = 1, and quaternary consumer = 0.1

Answer 2

1 kilocalorie of energy

Step-by-step explanation:

As you go up from each layer, you divide the amount of energy by 10. (Otherwise known as the Rule of 10)

So if the producer has 1000 kilocalories of energy, the grasshopper would have 100 cause you divide it by 10.

Then from the grasshopper to the mouse, you would divide 100 by 10 to get 10.

And finally from the mouse to the owl, you divide 10 by 10 to get 1 kilocalorie of energy.