Question

if the energy in the body mass of secondary carnivores is 0.1KJ ,the NPP of producers of that ecosystem is ​

Answer 1

Explanation:

Trophic level 1 = 90,000 kJ m−2

yr−1

10% of the energy goes to the herbivores: that is, _

90000

100 × 10 = 9000

Trophic level 2 = 9,000 kJ m−2

yr−1

5% of the energy passes to the carnivores: that is, _

9000

100 × 5 = 450

Trophic level 3 = 450 kJ m−2

yr−1

20% of the energy passes to the top carnivore: that is, _

450

100 × 20 = 90

Trophic level 4 = 90 kJ m−2

yr−1

: that is, only 0.1% of the initial NPP