The tertiary consumer will receive 500 calories.
Explanation:
Calories produced by the producer = 500,000
The flow of energy through different trophic levels is 10%
After producer comes the primary consumer followed by secondary consumer followed by tertiary consumer.
Energy reached to primary consumer = [tex]\frac{10}{100} X 500000[/tex]
= 50000 calories
Energy reached to secondary consumer = [tex]\frac{10}{100} X 50000[/tex]
= 5000 calories
Energy reached to tertiary consumer = [tex]\frac{10}{100} X 5000[/tex]
= 500 calories
Therefore, the tertiary consumer will receive 500 calories.