Which one of these is a biotic component of the ecosystem?
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The flow of energy is an ecosystem is always
Which of the following gets the minimum energy through the food chain in an ecosystem?
Which of these is a terrestrial ecosystem?
In a food chain, the third trophic level is always occupied by
Ozone layer in uppermost atmosphere is destroyed by
In the food chain given below, if the energy at fourth trophic level is 3 kJ, what was the energy available at producer level?
Grass → Grasshopper → Frog → Snake → Hawk
One of the following is a mirco-consumer. This one is
Organism of a higher trophic level which feed on several types of organisms belonging to number of lower trophic levels of different food chains constitute the
Which one of the following is not a terrestrial ecosystem?
Which of the following act as decomposers in an ecosystem?
If 10 Joules of energy is available of producer level, then the energy transferred to the lion in the following food chain is
Plants → Deer → Lion
Oxygen molecule (O2) is converted into ozone (O3) by the action of
In a food chain, the initial organism is usually
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13 videos|44 docs|187 tests
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