BIOLOGY IN HUMAN WELFARE
HUMAN HEALTH AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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I only
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I and II only
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Detailed explanation-1: -Because mercury is a persistent substance, it can build up, or bioaccumulate, in living organisms, inflicting increasing levels of harm on higher order species such as predatory fish and fish eating birds and mammals through a process know as “biomagnification".
Detailed explanation-2: -Mercury (Hg) biomagnifies from the bottom to the top of the food chain. Even at very low input rates to aquatic ecosystems that are remote from point sources, biomagnification effects can result in mercury levels of toxicological concern.
Detailed explanation-3: -Methylmercury is a type of mercury, a metal that is liquid at room temperature. A nickname for mercury is quicksilver. Most compounds containing mercury are poisonous. Methylmercury is a very poisonous form of mercury. It forms when bacteria react with mercury in water, soil, or plants.
Detailed explanation-4: -Organic mercury compounds are formed when mercury combines with carbon. Microscopic organisms in water and soil can convert elemental and inorganic mercury into an organic mercury compound, methylmercury, which accumulates in the food chain.