Assertion : In a food chain, members of successive higher levels are fewer in number.
Reason : Number of organisms at any trophic level depends upon the availability of organisms which serve as food at the lower level.

Which of the following is correct sequence in food chain

Which of the following is a primary consumerin maize field ecosystem ?

In relation to energy transfer in ecosystem, explain the statement "$10$ $kg$ of deer's meat is equivalent to $1$ $kg$ of lion's flesh".

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