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

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 has highest level of DDT deposition in its body?

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

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).

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.

Which organism would be most impacted by DDT?

DDT is highly toxic to aquatic animals (14). DDT affects various systems in aquatic animals including the heart and brain (14).

5 ii. Binomial distribution problem. using calculator.

When the concentration of something increases along a food chain?

The term food web biomagnification is used to describe trophic enrichment of contaminants within food webs and refers to the progressive increase in chemical concentrations with increasing animal trophic status.

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.

What is impact of DDT on fish eating birds?

High concentrations of DDT disturb calcium metabolism in birds, which causes thinning of eggshell and their premature breaking, eventually causing a decline in bird populations.

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

Solution : DDT concentration continuously increases in successive trophic levels in a food chain. This phenomenon is known as biological magnification or biological amplification.

What is the impact of DDT on birds and other higher trophic level organisms?

Rather, DDT and its relatives alter the bird's calcium metabolism in a way that results in thin eggshells. Instead of eggs, heavily DDT-infested Brown Pelicans and Bald Eagles tend to find omelets in their nests, since the eggshells are unable to support the weight of the incubating bird.

What is the concentration of DDT for first trophic level?

Hence, the correct answer is '25 ppm'

What happens to the concentration of DDT in each trophic level * 1 point decrease increases remains unchanged becomes zero?

Hence, the correct answer is 'Increases'.

What is the major effect of DDT birds?

Biomagnification of DDT leads to an increase in its concentration at the higher trophic level and its higher concentration in birds leads to the disturbance in their calcium metabolism. This causes the premature breaking of eggs in birds due to thinning of eggshell.

How is the bird population affected by DDT?

DDT is resistant to metabolism by living beings and hence tends to accumulated. The presence of DDT in a bird's body leads to thinning of eggshells leading to death of the chicks before hatching. This explains the declining population of birds because of DDT.

Why do high levels of DDT in birds such as bald eagles and brown pelicans lead to declines in population sizes?

The high concentration of DDT interferes with the calcium metabolism of birds and induces eggshell thinning. Premature breakage. This causes the population to decrease. Additional Information: Bald eagle and other bird populations collapsed as DDT thinned their eggs killing their embryos.

Which one shows the least magnification of DDT in aquatic food chain?

Phytoplanktons are the producers in the food chain having the least amount of toxicant DDT, as we move to the successive trophic levels the amount of DDT increases. It becomes maximum in the fish-eating birds (DDT 25 ppm).

How does DDT get into water?

In surface water, DDT will bind to particles in the water, settle, and be deposited in the sediment. DDT is taken up by small organisms and fish in the water. It accumulates to high levels in fish and marine mammals (such as seals and whales), reaching levels many thousands of times higher than in water.

What products have DDT in them?

Animal and fatty foods contain the highest levels of DDT and PCBs because they are stored in fat and increase in concentration as they move up the food chain. Even though it was banned in 1972, vegetables, meat, fish, and dairy products contain DDT.

What is the concentration of DDT in seawater?

For DDT and metabolites the criterion to protect saltwater / aquatic life as derived using procedures other than the Guidelines is 0.0067 ugl as a 24-hour average and the concentration should not exceed 0.021 ug/1 at any time.

What is DDT among the following?

DDT is a non-biodegradable pollutant.

How does DDT in the environment affect many birds quizlet?

how does DDT affect animals? for animals, such as birds, it can disturb the reproductive processes, such as thinning the eggshells or lead to imbalances of ions in cells that affects the nervous system in some fish.

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.

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'

Is the amount of DDT at each level in this model is accurate compared to the real world?

This lab is not accurate compared to the "real world". In the "real world", there isn't as much DDT to begin with. In the lab, our DDT was around 0.8 for each phytoplankton while in the "real world" it is around 0.4.