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NEET UG BIOLOGY MCQ: ECO SYSTEM
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Which of the following statement(s) is/are correct about biogeochemical cycle?
(i) Gaseous exchanges of phosphorus between organism and environment are negligible.
(ii) All biogeochemical cycles include both organisms and non-living components.
(iii) Most elements remain longest in the living portion of their cycle.
(iv) The chemical elements used by organisms in large quantities cycle back and forth between organisms and environment.
(i) Gaseous exchanges of phosphorus between organism and environment are negligible.
(ii) All biogeochemical cycles include both organisms and non-living components.
(iii) Most elements remain longest in the living portion of their cycle.
(iv) The chemical elements used by organisms in large quantities cycle back and forth between organisms and environment.
View answer and explanation
Correct option: B
(i), (ii) and (iv)
Option B ((i), (ii) and (iv)) is correct because gaseous exchanges of phosphorus are negligible, all biogeochemical cycles include organisms and non-living components, and elements used in large quantities cycle between organisms and the environment.
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II. According to this law, during the transfer of food energy from one tropical level to the other, only about 10% is stored at higher trophic level and the remaining 90% is lost in respiration, decomposition and waste in the form of heat
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proceed to which type of climax community?