OBJECTIVE LIFE SCIENCE
ECOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
When a predator eats its prey
|
|
|
The prey eats its predator
|
|
|
The chemicals go away as the predator eats its prey
|
|
|
A pollutant moves up the food chain and grows larger as the predator eats its prey
|
Detailed explanation-1: -Biomagnification results from the process of bioaccumulation and biotransfer in which the tissue concentration increases in organisms higher up the food chain as a result of predation (see Figure 5). As it is consumed throughout the food chain, the contaminant concentration can increase until it reaches a toxic level.
Detailed explanation-2: -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-3: -Biomagnification refers to the condition where the chemical concentration in an organism exceeds the concentration of its food when the major exposure route occurs from the organism’s diet.
Detailed explanation-4: -Biomagnification is any concentration of a toxin, such as pesticides, in the tissues of tolerant species at increasingly higher levels in a food chain. The buildup of the insecticide DDT in zooplankton is one instance of biomagnification in action.