Which one of the following is likely to have highest level of DDT?

Among the given animals, sea gull which is a fish eating bird and is present at higher trophic level, will have high levels of DDT depositon in its body.

Which of the following trophic level has highest concentration of DDT deposition?

Highest concentration of DDT is seen in the tertiary consumers.

Which among the following is likely to have the highest levels of DDT DDT depositions in its body?

Amon the given animals, the seagull which is a fish-eating bird and is present at a higher trophic level, so it has high levels of DDT deposition in its body.

What happens to the concentration of DDT in each trophic level 1 point?

Solution : DDT concentration continuously increases in successive trophic levels in a food chain.

Why does DDT get concentrated as it moves up the food chain?

The concentration effect occurs because DDT is metabolized and excreted much more slowly than the nutrients that are passed from one trophic level to the next. So DDT accumulates in the bodies (especially in fat).

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Where is the highest concentration of DDT found?

The highest amount of DDT and derivatives residues were found in carnivore fish species, C. striatus which is the top predator of food web. In contrast, the lowest residue levels of DDT and derivatives were found in the omnivores, P. gonionotus.

Which organisms contain the most DDT?

Worms, grasses, algae, and fish accumulate DDT. Apex predators, such as eagles, had high amounts of DDT in their bodies, accumulated from the fish and small mammals they prey on.

What is the concentration of DDT for first trophic level?

Hence, the correct answer is '25 ppm'

In which trophic level biomagnification is highest?

So the correct answer is 'secondary consumers'.

What happens to the concentration of DDT in each trophic level Mcq?

An example is DDT whose concentration increases at each trophic level.

Who produces DDT?

DDT is currently being produced in three countries: India, China, and the Democratic People's Republic of Korea (DPRK; North Korea) (Table 1). By far the largest amounts are produced in India for the purpose of disease vector control.

Why DDT is banned in most of the countries?

In 1972, EPA issued a cancellation order for DDT based on its adverse environmental effects, such as those to wildlife, as well as its potential human health risks. Since then, studies have continued, and a relationship between DDT exposure and reproductive effects in humans is suspected, based on studies in animals.

Is DDT used in India?

India is the only country still manufacturing DDT, and is the largest consumer.

Which trophic level has maximum number of organisms why B in which trophic level chemicals like DDT are accumulated in highest concentration?

(i) The trophic level T1 has maximum number of organisms. (ii) At trophic level 4 chemicals like DDT are accumulated in its highest concentration.

Why does the concentration of toxic substances increase from a lower to a higher trophic level?

As the trophic level increases in a food chain, the amount of toxic build up increases. The x's represent the amount of toxic build up accumulating as the trophic level increases. Toxins build up in organism's fat and tissue. Predators accumulate higher toxins than prey.

Which trophic level in the food web would contain the highest concentration of chemical pollutants due to biological magnification?

The higher an animal is on the food chain (e.g. tertiary consumer such as seals), the greater the concentration of DDT in their body as a result of a process called biomagnification.

What is biomagnification of DDT?

Biomagnification happens when toxic chemicals, like DDT, whose remains in the environment are consumed indirectly by organisms through food. When an organism in the higher food chain consumes the lower organism containing such chemicals, the chemicals can get accumulated in the higher organism.

Which of the following exhibits biomagnification a so2 B Mercury C DDT D Both B & C?

Solution : Biomagnification refers to increase in concentration of the toxicant at successive trophic level. This phenomenon is well known for DDT and Hg.

Which trophic level has the highest concentration of toxic substances in a food chain?

Answer. Top Carnivore or we can say secondary consumer has the highest concentration of toxic substances in a food chain...

Is the following in the correct sequence of increasing order of DDT concentration?

Hence, the correct answer is 'Water-0.003ppm, zooplankton- 0.04ppm, small fish-0.5ppm, large fish-2ppm, fish eating birds-25ppm'

What is DDT in food chain?

Dichlorodiphenytrichloroethane (DDT) is an organochlorine insecticide with a broad spectrum of activities such as the control of pest in forest and on agricultural crops, household pests, vector-borne diseases like malaria, typhus, etc.

Which of the following groups is most susceptible to problems from DDT?

Plants/animals from which of the following groups are most susceptible to problems from DDT? primary producer, primary consumer, secondary consumer or tertiary consumer. Why? Tertiary consumers are more susceptible to problems from DDE because of biomagnification.

What concentration of DDT did the birds have in their bodies?

The birds' brains contained concentrations of DDE, a breakdown product of DDT, ranging from 155 to 1,043 parts per million, with an average of 552.

Which of the following is the highest trophic level organism in grassland food web?

So, the correct answer is 'Producers'.