Food and energy relationships among living components of ecosystem is generally referred as
Biocoenosis
Microcosm
Bioenergetic approach
None of the above
It’s obvious.
The amount of living matter present in an ecosystem at a given time is called
How many sentence are correct?
$(1)$ The trophic levels in $GFC$ are unlimited
$(2)$ Organisms at each trophic level depend on those at the higher trophic level for their energy demands.
$(3)$ Plants capture only $2 -10$ percent of $PAR$.
$(4)$ All organisms are dependent for their food on producers, either directly or indirectly.
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 of the following statement is not correct about energy flow in an ecosystem?
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