Which one of the following is an artificial ecosystem?
In a food chain, the third trophic level is always occupied by
In a food chain, the second trophic level is always occupied by
An ecosystem includes
In the given food chain, suppose the amount of energy at fourth trophic level is 5 kJ, what will be the energy available at the producer level?
Grass ↠ Grasshopper ↠ Frog ↠ Snake ↠ Hawk
Accumulation of non-biodegradable pesticides in the food chain in increasing amount at each higher trophic level is known as
Depletion of ozone is mainly due to
Organisms which synthesise carbohydrates from inorganic compounds using radiant energy are called
In an ecosystem, the 10% of energy available for transfer from one trophic level to the next is in the form of
Organisms of a higher trophic level which feed on several types of organisms belonging to a lower trophic level constitute the
Flow of energy in an ecosystem is always
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