The average trophic efficiency of transfer of energy from one trophic level to the higher trophic level is called
The average trophic efficiency of transfer of energy from one trophic level to the higher trophic level is called
- A
Assimilation efficiency
- B
Exploitation efficiency
- C
Lindemann's trophic efficiency rule
- D
Gross primary production
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The biotic part of ecosystem includes
The biotic part of ecosystem includes
Which of the following are called key industry animals?
Which of the following are called key industry animals?
In an ecosystem energy flows in
In an ecosystem energy flows in
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.
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.
What is common in earthworm, soil mites and dung beetle in an ecosystem?
What is common in earthworm, soil mites and dung beetle in an ecosystem?