Organisms occupying similar ecological niche but different geographical areas of distribution are called as
Edge species
Ecological equivalents
Ecoclines
Inquilines
The ecologically fixed and genetically irreversed species are called
$A$ : Estuary constitutes one of the most productive ecosystem.
$R$ : It represents transition zone between two populations of a species.
The species of plants that play a vital role in controlling the relative abundance of other species in a community are called
Explain competition in detail.