The elements arsenic,copper,and mercury have | vedclass

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(C) The elements arsenic $(As)$,copper $(Cu)$,and mercury $(Hg)$ are known for their toxic effects on living organisms.Many elements,such as copper $(

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Toxic effect

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(C) The elements arsenic $(As)$,copper $(Cu)$,and mercury $(Hg)$ are known for their toxic effects on living organisms.Many elements,such as copper $(Cu)$,become toxic when present in concentrations higher than the normal physiological requirement.Other elements,such as mercury $(Hg)$ and arsenic $(As)$,are toxic even at very low concentrations,as they interfere with essential metabolic processes and enzyme functions.

Column-$I$	Column-$II$
$(a)$ Calcium	$(p)$ Ferredoxin
$(b)$ Phosphorus	$(q)$ $N_2$ metabolism
$(c)$ Iron	$(r)$ Meristematic tissue
$(d)$ Manganese	$(s)$ Cell membrane

The elements arsenic,copper,and mercury have which of the following effects?

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