Question

if there are 1,000 kcal of energy available at the producer level, how much energy would be transferred (moved) to the primary consumer?
○ 1,000 kcal
○ 100 kcal
○ 10,000 kcal

Explanation:

Step1: Recall Energy Transfer Rule

In a food chain, only about 10% of energy is transferred from one trophic level to the next.

Step2: Calculate Energy for Primary Consumer

Producer energy is 1,000 Kcal. Primary consumers get 10% of producer's energy. So, \( 1000 \times \frac{10}{100} = 100 \) Kcal.

Answer:

100 Kcal (corresponding to the option "100 Kcal")