Final answer:
Biomagnification refers to the process by which the concentration of a pesticide increases through a food chain.
Step-by-step explanation:
The process by which the concentration of a pesticide increases through a food chain is called biomagnification. This occurs as a result of the bioaccumulation of the pesticide in each successive trophic level of the food chain. As organisms consume other organisms, the pesticide accumulates and becomes more concentrated in the higher trophic levels. For example, if a plant is sprayed with a pesticide and then a herbivore eats the plant, the pesticide concentration in the herbivore will be higher than in the plant. If a carnivore then consumes the herbivore, the pesticide concentration in the carnivore will be even higher.
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