$A$- Grasshopper is included in primary consumer.
$R$- Fishes and birds are included in top carnivore.
$A$ and $R$ both are correct.
$A$ and $R$ both are incorrect.
$A$ is correct, $R$ is incorrect.
$A$ is incorrect, $R$ is correct.
Driving force of any ecosystem is
If phytoplankton are destroyed in the sea, then
Nektons are
Food chain is a series of population, which starts with producers. It is concerning with
The amount of living matter present in an ecosystem at a given time is called