Question

remember that the 10% rule says that only 10% of the energy from one trophic level makes it to the next trophic level in a food chain or food pyramid. using the 10% rule when studying trophic pyramids, if the primary consumers obtain 1,000 joules of energy, how much energy do the producers have? 10,000 joules 650 joules 3,000 joules

Explanation:

Step1: Understand the 10% rule

The 10% rule states that only 10% ($0.1$) of the energy from one trophic level transfers to the next.

Step2: Set up the equation

Let $E$ be the energy of producers. Primary consumers get 10% of producer's energy. So, $0.1\times E = 1000$.

Step3: Solve for $E$

$E=\frac{1000}{0.1}=10000$ joules.

Answer:

10,000 Joules