Question

Biological magnification is the _ _ _ _ in the concentration of heavy metals and harmful compounds with successive trophic level:



Increment.

Decrement.

None.

All of the above​

Answer 1

Answer:

I think it is decrement

it is correct answer

Answer 2

Answer:

Biological magnification is the increment in the concentration of heavy metals and harmful compounds with successive trophic level.

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More to know :

Biomagnification or biological amplification is entry and increase in concentration of nonbiodegradable substances (heavy metals and persistent pesticides) in the food chain

• It is found in all types of ecosystems.

• It does not result in organic loading.

• There is no bloom formation.

• It results in toxicity in higher order consumers.

Example of biomagnification of DDT in an aquatic food chain :-

0.003 parts per billion in water, 30 parts per million or 0.003 ppm in phytoplankton, 0.04 ppm in zooplankton, 0.5 ppm in small fishes, 2.0 ppm in predator fishes and 25 ppm in fish eating birds (eg. Sea Gulls).