Trophic levels are formed by
Organisms linked in food chain
Only plants
Only animals
Only carnivores
Suppose $2000 \mathrm{~J}$ of solar energy is incident on green vegetation. On the basis of $10 \;\%$ law of Lindeman. Identify $A, B$ and $C$
Which of the following is source of energy to an ecosystem
If $10,000 \;J$ of energy fall on piece of land, then what is energy available at $T_2$ level?
Distinguish between
$(a)$ Grazing food chain and detritus food chain
$(b)$ Production and decomposition