Increase in concentration of the toxicant at | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The increase in the concentration of toxic substances at successive trophic levels is known as biomagnification.This occurs because a toxic substa

Vedclass · Accepted Answer

biomagnification

Vedclass · Answer

(C) The increase in the concentration of toxic substances at successive trophic levels is known as biomagnification.This occurs because a toxic substance accumulated by an organism cannot be metabolized or excreted,and thus is passed on to the next higher trophic level.For example,$DDT$ is a persistent pesticide that accumulates in the fatty tissues of organisms.As it moves up the food chain,its concentration increases significantly per unit weight of the organism.For instance,the concentration of $DDT$ in water is $0.003 \ ppb$,which increases to $0.003 \ ppm$ in phytoplankton,$0.04 \ ppm$ in zooplankton,$0.5 \ ppm$ in small fish,$2.0 \ ppm$ in large fish,and reaches $25 \ ppm$ in fish-eating birds.

Increase in concentration of the toxicant at successive trophic levels is known as

Similar Questions

Volcano eruption disturbs which of the following biogeochemical cycles?

Choose the incorrect sentence regarding an electrostatic precipitator.

Which of the following is a biodegradable pollutant?

In an aquatic food chain,if a water body has $0.003 \; ppb$ of $DDT$,its maximum concentration can be observed in:

Differentiate between wet deposition and dry deposition.

Vedclass Test Series

Exam Paper Generator

Online Exam Module