AP BIOLOGY

ECOLOGY

HUMANS AND THE BIOSPHERE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web.
A
Biodiversity
B
Biological Magnification
C
Generic Diversity
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: -Biomagnification increases the concentration of toxic substances in organisms at higher trophic levels. DDT is an example of a substance that biomagnifies; birds accumulate sufficient amounts of DDT from eating fish to cause adverse effects on bird populations.

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: -The accumulation and progressive increase in the concentration of non-biodegradable, harmful chemicals at different trophic levels in a food chain is called bioconcentration or biomagnification. The accumulation of DDT in fishes and fish-eating birds is a classic example of biomagnification.

Detailed explanation-5: -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.

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