An inverted pyramid of $...A...$ may occasionally be observed in $...B...$ communities
$A-$energy; $B-$grassland
$A-$energy; $B-$forest
$A-$biomass; $B-$marine
$A-$biomass; $B-$grassland
Stratification occurs in
An ecosystem contains
Which is adapted for aquatic habit
$A$ : Stratification helps in accommodation of a large number and types of plants in the same area.
$R$ : It is the occurrence of horizontal zonation in the ecosystem.
Stratification is more pronounced in