Whale is
Primary producer
Carnivorous, secondary consumer
A decomposer
Herbivorous
The lentic ecosystem includes which of following water
$A$ : In secondary productivity, no new organic matter is formed.
$R$ : It is only utilisation of part of food manufactured by primary producers in building of consumer biomass.
The number of trophic levels in an ecosystem are limited. Comment.
Identify the possible link “$A$” in the following food chain.
Plant $→$ Insect $→$ Frog $→$ “$A$” $→$ Eagle
It is included in tertiary consumer.