The amount of living matter present in an ecosystem at a given time is called
Biomass
Standing crop
Standing state
Productivity
Major conduit of energy in land and aquatic ecosystem is transferred through ______ and ______ respectively.
Which one of the following types of organisms occupy more than one trophic level in a pond ecosystem?
Nutrient immobilisation
Energy enters into the ecosystem through
Food chain is a series of population, which starts with producers. It is concerning with