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What is accumulation of pollutants at successive levels of the food chain.?
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What is bioaccumulants?
Bioaccumulation is the building up of toxins in a food chain. Since toxins like, for instance, DDT, are not soluble in water and are instead stored in the fatty tissues, their levels raise each tier you go up on the food chain. I'll give you an example...Plankton, at the bottom of the food chain, eat small particulates and algae, but also take in small levels of mercury.Small fish then eat the plankton. The mercury concentrates further - remember, DDT and mercury are not water soluble toxins, so they can't be passed through urine or feces.Large fish may eay up to 1,000 small fish in their lifetime. The mercury reaches dangerous levels for humans, and may cause genetic mutations in the fish's reproductive habits (ie, size of eggs, number of eggs, etc).Oceanic birds eat large and small fish. The mercury causes more genetic defects, including thinner eggshells.As you can see, bioaccumulation poses a real danger to certain ecosystems, especially since many areas were sprayed with DDT in the 60's and 70's.
What are the types of chains and tapes used in chain surveying?
metric chain gunters chain engineers chain revenue chain
How many yards are in a chain?
1 chain = 22 yards
Difference between daisy chained and non daisy chain?
A daisy chain is a chain of daisies tied together ( I would know that because of my name )
How can energy be lost in a food chain?
Energy can be lost in a food chain by heat or waste.
An accumulation of pollutants at successive levels of the food chain is called?
Bioaccumulation
Why are some pollutants more harmful to organisms at higher trophic levels?
Higher trophic levels are animals that are higher up on the food chain. When animals lower on the food chain get effected by pollutants, it transfers to the animal that eats that one. And so on. So the animals on the higher trophic level eat the most animals(animals with the pollutants).
The process by which non-biodegradable pollutants become more concentrated near the top of a food chain is called?
The tendency of chemicals to become more concentrated as they move up the food chain is known
How can pollutants affects organisms?
Pollutants settle in the soil, and they are absorbed by plants and build up in other organisms through the food chain.
What is the name of the process in which a harmful chemical enters the food chain and gets concentrated in the food chain?
Bio-accumulation.
How is energy is transferred through trophic levels?
Trophic levels are the positions of organisms in a food chain. Energy is transferred through the trophic levels through ingestion at each level.
Which type of pollutant is more concentrated near the top of a food chain?
Nonbiogradable pollutants
Do pollutants like mercury increase as they move up the food chain?
It should progressively diminish.
Why is pollution bad for human health?
Pollutants dumped into the air can eventually get into your body when you eat, drink and breathe. Pollutants in the air fall to earth with the rain drops and snow flakes. The pollutants then become more and more concentrated by biomagnification as they move up the food chain to you.
What is the process where pollution levels increase through the food chain?
increase in concentration of a pollutant from one link in a food chain to another. Biomagnification is the bioaccumulation of a substance up the food chain by transfer of residues of the substance in smaller organisms that are food for larger organisms in the chain. It generally refers to the sequence of processes that results in higher concentrations in organisms at higher levels in Biomagnification: the food chain (at higher trophic levels). These processes result in an organism having higher concentrations of a substance than is present in the organism's food. Biomagnification can result in higher concentrations of the substance than would be expected if water were the only exposure mechanism. Accumulation of a substance only through contact with water is known as bioconcentration..
What is bioamplification?
Bioamplification, or biomagnification, is the process that results in the increasing toxin concentration in consumers in successive trophic levels. In other words, the collecting of poison and chemicals in animal's tissues becomes more concentrated when animals are higher up in the food chain.
Absorption and accumulation of toxic chemicals up the food chain is a definition of what word?
Bioaccumulation is a process by which chemical substances are ingested and retained by organisms, either from the environment directly or through consumption of food containing the chemicals. Biomagnification is a cumulative increase in the concentration of a persistent substance in successively higher levels of the food chain. Bioconcentration refers to the cumulative effects of bioaccumulation and biomagnification.
