NEET BIOLOGY

BIOLOGY IN HUMAN WELFARE

HUMAN HEALTH AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When concentrations of toxicants increase each step up the food chain it is called?
A
biomagnification
B
toxicology
C
risk assessment
D
epidemiology
Explanation: 

Detailed explanation-1: -Biomagnification, also known as bioamplification or biological magnification, is the increase in concentration of a substance, e.g a pesticide, in the tissues of organisms at successively higher levels in a food chain.

Detailed explanation-2: -Biomagnification is the process by which toxic chemicals build up within predators.

Detailed explanation-3: -Biomagnification takes place as chemicals transfer from lower trophic levels to higher trophic levels within a food web, resulting in a higher concentration in apex predators.

Detailed explanation-4: -What is Biomagnification? Biomagnification can be defined as the rise or increase in the contaminated substances caused by the intoxicating environment. The contaminants might be heavy metals such as mercury, arsenic, and pesticides such as polychlorinated biphenyls and DDT.

Detailed explanation-5: -Biomagnification is the accumulation of a chemical by an organism from water and food exposure that results in a concentration that is greater than would have resulted from water exposure only and thus greater than expected from equilibrium. From: Treatise on Geochemistry, 2007.

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