Biomagnification is defined as

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Biomagnification is defined as

Biomagnification is the increase in toxin concentration as you move up the food chain. This happens because persistent, fat‑soluble contaminants stay in organisms and are not fully broken down or excreted. When a predator eats multiple contaminated prey, it accumulates a higher toxin load, and this pattern repeats at each higher trophic level, leading to the highest concentrations in top predators. This concept is different from toxins simply building up inside a single organism over time (bioaccumulation). The other descriptions don’t fit: toxins decreasing up the chain, toxins spreading evenly across all organisms, or toxins found only in plants.

Biomagnification is the increase in toxin concentration as you move up the food chain. This happens because persistent, fat‑soluble contaminants stay in organisms and are not fully broken down or excreted. When a predator eats multiple contaminated prey, it accumulates a higher toxin load, and this pattern repeats at each higher trophic level, leading to the highest concentrations in top predators. This concept is different from toxins simply building up inside a single organism over time (bioaccumulation). The other descriptions don’t fit: toxins decreasing up the chain, toxins spreading evenly across all organisms, or toxins found only in plants.

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