In the given food chain, what will be the impact of removing all the organisms of second trophic level on the first and third trophic level? Will the impact be the same for the organisms of the third trophic level in the above food chain if they were present in a food web? Justify. Name the gas and write the function performed by this gas in the atmosphere. Which chemical is linked to the decrease in the level of this gas? What measures have been taken by an international organisation to check the depletion of the layer containing this gas?
Explanation
The impact of removing all the organisms of second trophic level on the first and third trophic level will be a decrease in the population of the first trophic level and an increase in the population of the third trophic level. This is because the second trophic level is the primary consumer, and its removal will lead to an increase in the population of the producers (first trophic level) and a decrease in the population of the tertiary consumers (third trophic level).
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