Question

how much energy would be available for the orca if the producers start with 1,000,000 kcal? arctic food chain orca leopard seal silverfish krill plankton 1,000 100 100,000 10,000

Explanation:

:
1,000

Step1: Recall energy - transfer rule

Only about 10% of energy is transferred from one trophic level to the next.

Step2: Identify trophic levels

Producers (plankton) are at the first level. Orca is at the fifth level.

Step3: Calculate energy available to orca

Starting with 1,000,000 kcal in producers. After 4 transfers (from producers to krill, krill to silverfish, silverfish to leopard seal, leopard seal to orca), the energy available is $1000000\times(0.1)^4 = 1000000\times0.0001=1000$ kcal.

Answer:

Step1: Recall energy - transfer rule

Only about 10% of energy is transferred from one trophic level to the next.

Step2: Identify trophic levels

Producers (plankton) are at the first level. Orca is at the fifth level.

Step3: Calculate energy available to orca

Starting with 1,000,000 kcal in producers. After 4 transfers (from producers to krill, krill to silverfish, silverfish to leopard seal, leopard seal to orca), the energy available is $1000000\times(0.1)^4 = 1000000\times0.0001=1000$ kcal.