In a Hypothetical Land Ecosystem,plants- the Primary Producers- Capture 1000

Multiple Choice

In a hypothetical land ecosystem,plants- the primary producers- capture 1000 kilocalories of sunlight energy per square meter per year.Approximately,how many kilocalories of the plant's energy will be harvested by the third trophic level?

A) 1
B) 10
C) 100
D) 1000
E) impossible to calculate