Difference between bioaccumulation and biomagnification
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Answer:
Bioaccumulation
This brings us to our first often-confused term. Bioaccumulation refers to the build-up of a toxic chemical in the body of a living organism. What essentially happens is that an organism absorbs the chemicals across their skin or otherwise takes them in. The concentration of the toxic chemical will become higher in the organism than it is in the air, water, or soil that the organism got it from. Over time, the amount of the toxic chemical will grow until it reaches the point where it becomes deadly to the living organism.
Biomagnification
The term that bioaccumulation is often confused with is biomagnification, which is when a toxic chemical increases in amount each time it moves up a food chain. The toxic chemical may start at a low amount in the original organism that originally took it in, but then that organism is eaten. The second animal that eats the original organism is larger and therefore needs to consume more than just one or two of the organism. This causes the toxic chemical in the second animal to increase from eating multiple organisms.
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Answer:
One difference is that bioaccumulation refers to the build-up of the chemical in the body of one organism while biomagnification refers to the build-up in multiple organisms. Biomagnification also requires movement up a food chain in order to occur, while bioaccumulation does not require that the animal be eaten.
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