As ddt moves up the trophic levels in food chains its concentration?

As Dichlorodiphenyltrichloroethane (DDT) moves up the trophic levels in food chains, or food webs, its concentration increases. This happens because DDT is fat soluble and so it accumulates in the bodies of organisms which come into contact with it.

1. What happens to the concentration of DDT as you move up the food chain?
2. Which trophic level has highest concentration of DDT?
3. Which trophic level is affected by DDT?
4. What is the concentration of DDT for first trophic level?
5. How does DDT enter the food chain?
6. How does DDT undergo biomagnification in the food chain?
7. What is DDT concentration?
8. What happens to the concentration of DDT in each trophic level Mcq?
9. What do you notice about the levels of DDT as it moves up in trophic levels Why do you think this is happening?
10. What does DDT stand for?
11. What is the concentration of DDT in a small fish?
12. Where is the highest concentration of DDT found in aquatic?
13. What will be the concentration of DDT in large fish?
14. Which level of the food chain is most affected by biomagnification?
15. Why is DDT harmful to Osprey?
16. How food chains and food webs indicate the process of bioaccumulation and bio magnification at different energy levels?

What happens to the concentration of DDT as you move 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). ... The process of concentration goes right on up the food chain from one trophic level to the next.

Which trophic level has highest concentration of DDT?

It is observed that the level of DDT increases as the food chain progresses. It means, the primary consumers will have more DDT concentration than the producers, the secondary consumers will have more than primary consumers, and so on. The highest concentrations will be seen in the top carnivore.

Which trophic level is affected by DDT?

Which trophic level is affected by DDT? The higher the trophic level of an organism, the higher the concentration of DDT. DDT is excreted from the body very slowly and it is stored in fat. Thus, when an organism consumes another organism, the DDT in the prey accumulates in the predator.

What is the concentration of DDT for first trophic level?

The concentration of DDT starts at 0.003 ppb (parts per billion) in the water. When it moves up in each tropical level, its concentration increases through biological magnification and reaches up to 25 ppm (parts per million) in fish-eating birds. Hence, the correct answer is option (C).

How does DDT enter the food chain?

DDT enters the food chain after it gets spread, either from getting on insects, plants, or water runoff.

How does DDT undergo biomagnification in the food chain?

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.

What is DDT concentration?

The DDT concentration is in parts per million. As the trophic level increases in a food chain, the amount of toxic build up also increases. The X's represent the amount of toxic build up accumulating as the trophic level increases. Toxins build up in organism's tissues and fat.

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

Explanation: The process of accumulation of certain pollutants (toxins) in the tissues of organisms whose concentration increases along the food chain is known as biomagnification or bioamplification. ... An example is DDT whose concentration increases at each trophic level. 12.

What do you notice about the levels of DDT as it moves up in trophic levels Why do you think this is happening?

Explanation: DDT increases or biomagnifies if we look at a food chain. ... Thus, if a predator consumes multiple organisms and each organism has a small amount of DDT, the amount of DDT in the predator is going to be the result of all of those small amounts combined.

What does DDT stand for?

DDT (dichloro-diphenyl-trichloroethane) was developed as the first of the modern synthetic insecticides in the 1940s. It was initially used with great effect to combat malaria, typhus, and the other insect-borne human diseases among both military and civilian populations.

What is the concentration of DDT in a small fish?

This phenomenon is called biomagnification, e.g., 0.003 parts per billion (ppb) of DDT concentration in water changes to 30 ppb or 0.003 parts per million (ppm) in phytoplankton, 0.04 ppm in zooplankton, 0.5 ppm in clams and small fish, 2.0 ppm in predator fish and 25 ppm in fish eating birds like sea gulls.

Where is the highest concentration of DDT found in aquatic?

Seagulls feed on the dead or alive fishes and will contain the highest DDT concentration.

What will be the concentration of DDT in large fish?

The small fish are eaten by large fish (secondary consumers) and eventually, aquatic birds (tertiary consumers) feed on these large fish. So, from the initial DDT concentration of 0.003ppb, it can go up to 25ppm in aquatic birds. Note: DDT is harmful to animals and humans.

Which level of the food chain is most affected by biomagnification?

In many cases, animals near the top of the food chain are most affected because of a process called biomagnification. Many of the most dangerous toxins settle to the seafloor and then are taken in by organisms that live or feed on bottom sediments.

Why is DDT harmful to Osprey?

Thinning Shells

DDT made it more difficult for birds to absorb calcium and the lack of calcium made their egg shells thinner and many eggs broke before they could hatch.

How food chains and food webs indicate the process of bioaccumulation and bio magnification at different energy levels?

Bioaccumulation takes place in a single organism over the span of its life, resulting in a higher concentration in older individuals. Biomagnification takes place as chemicals transfer from lower trophic levels to higher trophic levels within a food web, resulting in a higher concentration in apex predators.