The aquatic organism that can actively swim at will against the water current is
Neuston
Plankton
Nekton
Benthos
It is included in tertiary consumer.
Only a small amount of the energy stored in food is available to the next organism in a food chain because
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 order of organism in an aquatic food chain is