Energy flow in ecosystem is
Bidirectional
Unidirectional
All around
None of these
The second order consumer in a food chain is
Transfer of material and energy from one ecosystem to other ecosystem is best examplified by
The amount of living matter present in an ecosystem at a given time is called
When food energy passes from herbivores to carnivores
Which group of living organisms given below is a link in food chain between green plants and hawk