8 public questions tagged with this topic.
Biological magnification causes toxins to accumulate and increase in concentration at higher trophic levels, affecting top predators. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.
Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Biology - Botany portion covering relevant concept.
Biological magnification leads to an increased concentration of toxins in organisms at higher trophic levels, affecting top predators.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecosystem Services and Functions
Toxins increase in concentration as they move up the food chain, a process known as biomagnification.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecosystem Services and Functions
Biological magnification occurs when toxic substances accumulate in organisms and increase in concentration at higher trophic levels.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Nutrient Cycling - Carbon Phosphorus and Ecological Succession
Toxic substances increase in concentration as they move up the food chain, affecting top predators the most.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Nutrient Cycling - Carbon Phosphorus and Ecological Succession
Top consumers bear the highest biomagnified concentrations because they eat many prey that have already accumulated a persistent contaminant. Long life spans, lipid storage, and slow elimination can increase exposure further. Producers introduce the chemical into the food web, and herbivores and scavengers may also be harmed, but trophic integration generally gives apex consumers the greatest body burden when true biomagnification occurs. Climate, nutrients, disturbance, species traits, and food-web structure interact, so broad ecological generalisations describe tendencies rather than univers
Ref: Campbell Biology, Urry et al., 12th Ed., Unit 8 Ecology
Top-level carnivores experience the greatest effects of biomagnification because each individual integrates contaminants accumulated by numerous prey across several trophic transfers. Persistent lipophilic chemicals are stored faster than they are metabolised or excreted, producing high body burdens in long-lived predators. Producers may take up the pollutant first, but their concentrations are generally lower; herbivores and intermediate carnivores occupy intervening stages. Climate, nutrients, disturbance, species traits, and food-web structure interact, so broad ecological generalisations d
Ref: Campbell Biology, Urry et al., 12th Ed., Unit 8 Ecology
Biological magnification describes increasing concentrations of persistent, biologically available toxins at higher trophic levels. Producers take up a contaminant from water or soil; herbivores consume many producers, and predators consume many contaminated prey. When assimilation exceeds metabolism and excretion, tissue concentration rises at each transfer. Dilution is the opposite pattern, while fertiliser runoff is a pollution source rather than the trophic process itself. Net primary production equals gross primary production minus plant respiration and represents biomass or energy made a
Ref: Campbell Biology, Urry et al., 12th Ed., Unit 8 Ecology
