NEET BIOLOGY

ECOLOGY

BIODIVERSITY AND ITS CONSERVATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
____ is the increase of toxic substances in organisms as you go up the trophic levels in a food chain or web.
A
Biological magnification
B
Biological augmentation
C
Biological pollution
D
Biological toxicity
Explanation: 

Detailed explanation-1: -Biomagnification, also known as bioamplification or biological magnification or bioaccumulation, is the increasing concentration of a substance such as a toxic chemical in the tissues of organisms at successively higher levels in a food chain.

Detailed explanation-2: -Bioaccumulation is the process by which toxins enter the food web by building up in individual organisms, while biomagnification is the process by which toxins are passed from one trophic level to the next (and thereby increase in concentration) within a food web.

Detailed explanation-3: -Biomagnification, also known as bioamplification or biological magnification, is the increasing concentration of a substance, such as a toxic chemical, in the tissues of organisms at successively higher levels in a food chain.

Detailed explanation-4: -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-5: -When predatory animals consume their prey they also consume all of the toxic chemicals within said prey. When these toxins aren’t easily excreted they build up in the animal’s system through bioaccumulation. Therefore, when the food chain progresses, concentrations increase or magnify.

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