Question

In a typical energy pyramid about 10% of the available energy is transferred from one trophic level to the next. Consider an area in which the energy production of the autotrophs equals 200 Kcal/m2/year. What is the amount of energy available to secondary consumers in this energy pyramid?

A. 20 Kcal/m2/year
B. 10 Kcal/m2/year
C. 2 Kcal/m2/year

Answer 1

the answer is c
each level the energy transfer 10% if it was primary consumer the answer would be A

Answer 2

(c) 2 Kcal/m²/year

Step-by-step explanation:

In a typical energy pyramid about 10% of the available energy is transferred from one trophic level to the next.

In this case, an area in which the energy production of the autotrophs equals 200 Kcal/m2/year.

The transformation of energy starts from producers to primary consumers, then secondary consumers and finally to tertiary consumers.

From producers to primary consumers, transferred energy will be :

10 % of 200 Kcal/m²/year = 20 Kcal/m²/year

From primary consumers to secondary consumers the energy will be :

10 % of 20 Kcal/m²/year = 2 Kcal/m²/year

Hence, the correct option is (c).