In tropical rain forests,most of the energy in the ecosystem flows through:

Suppose $2000 \; J$ of solar energy is incident on green vegetation. On the basis of the $10 \; \%$ law of Lindeman,identify $A, B$ and $C$ as shown in the figure.

The transfer of energy from organisms to organisms in a natural community establishes

Energy enters into the ecosystem through

The number of trophic levels in a food chain is limited to $4$ or $5$ because

Food and energy relationships among living components of an ecosystem are generally referred to as: