Which one of the following organisms is likely to show the highest concentration of $DDT$,once it has been introduced into the ecosystem?

The percentage of energy transferred to the higher trophic level in a food chain is ....... (in $\%$)

Energy requirement for maintenance of body . . . . . . with successively higher trophic level.

Given below are two statements.
Statement $I$ - The amount of energy available in an ecosystem increases at each successive trophic level.
Statement $II$ - Transfer of energy from one trophic level to the other follows $10\%$ law.
In the light of above statements, select the correct option given below:

In any ecosystem, which trophic level has the maximum energy stored?

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