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(D) Nutrient cycling is a fundamental process in an ecosystem. $1$. Nutrients are never lost from the ecosystem; they are conserved and recycled repea

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(D) Nutrient cycling is a fundamental process in an ecosystem. $1$. Nutrients are never lost from the ecosystem; they are conserved and recycled repeatedly through biotic and abiotic components. $2$. The movement of nutrient elements through the various components of an ecosystem is defined as nutrient cycling. $3$. Since these cycles involve the movement of nutrients through living organisms (bio),geological processes (geo),and chemical processes (chemical),they are also known as biogeochemical cycles. Therefore,all the given statements are correct.

Column-$I$	Column-$II$
$(i)$ Producers	$(P)$ Primary consumers
$(ii)$ Herbivores	$(Q)$ Net primary productivity
$(iii)$ Carnivores	$(R)$ Primary trophic level
$(iv)$ Top carnivores	$(S)$ Secondary productivity

Similar Questions

Match the following columns correctly:

Column-$I$ Column-$II$

$(i)$ Producers $(P)$ Primary consumers

$(ii)$ Herbivores $(Q)$ Net primary productivity

$(iii)$ Carnivores $(R)$ Primary trophic level

$(iv)$ Top carnivores $(S)$ Secondary productivity

What will happen to an ecosystem if:
$(a)$ All producers are removed;
$(b)$ All organisms of herbivore level are eliminated; and
$(c)$ All top carnivore population is removed?

Which of the following is $NOT$ a functional unit of an ecosystem?

$A$: Estuary constitutes one of the most productive ecosystems.
$R$: It represents a transition zone between two populations of a species.

The 'Reed-swamp' stage refers to which of the following?

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