Energy flow in ecosystem is
Bidirectional
Unidirectional
All around
None of these
Distinguish between
$(a)$ Litter and detritus
$(b)$ Primary and secondary productivity
The number of trophic levels in an ecosystem are limited. Comment.
Assertion : A network of food chains existing together in an ecosystem is known as food web.
Reason : An animal like kite cannot be a part of a food web.
Which one of the following components of ecosystem comes from outside
The primary consumers in a pond ecosystem are