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Why would water plants contain DDT?
Some of the pesticides sprayed on farm crops wash off in the rain and get into the waterways. The water plants absorb the pesticides.
It is right for us to use pesticides such as ddt at all and why?
DDT is toxic for humans and animals.
What is DDT and what does it have to do with bio magnification?
DDT is dichlorodiphenyltrichlorethane; biomagnification of DDT in some organisms is possible.
What are the synthetic pesticides?
There are probably a number, but generically, they are those pesticides made in a factory out of simple ingredients (eg DDT - dichlorodiphenyltrichloroethane) rather than those that are extracted from living things (eg Pyrethrum)
What organisms have the most pesticides?
The organisms at thetop of the food chain will contain the most DDT. These are the top carnivores (or humans if we are in the food chain).DDT builds up in food chains for several reasons:1) It is a persistent pesticide IE: it is difficult for any organisms to break it down, it is non-biodegradable.2) It is soluble in fat, so it enters the fat storage tissue (adipose tissue) and stays there.3) Organisms higher in the food chain consume DDT every time they feed on organisms lower down in the food chain, if they are contaminated with DDT.4) The biomass at each level in a food chain gets less, so the concentration of DDT will increase.The increase in concentration of pesticides in a food chain is called bio-magnification.Additional Information: Seals, Predatory Fish, Bears, Predatory Birds, Bats.
Why would water plants contain DDT?
Some of the pesticides sprayed on farm crops wash off in the rain and get into the waterways. The water plants absorb the pesticides.
It is right for us to use pesticides such as ddt at all and why?
DDT is toxic for humans and animals.
What kills mosquitoes?
insectisides,pesticides,chemicals like ddt etc. kill mosquitoes
Who was a biologist who wrote about the dangers of the chemical DDT and other pesticides?
CARSON
Which scientist was most responsible for alerting the public to the risks involved in DDT spraying?
Rachel Carson, an American marine biologist and author, was most responsible for alerting the public to the risks involved in DDT spraying. Her book "Silent Spring," published in 1962, documented the harmful impacts of pesticides on the environment and raised awareness about the dangers of DDT to wildlife and human health.
What is the Colourless oily liquid used to make pesticides like DDT?
chloral
Why can biomagnification be a problem in ecosystems?
an increase in chemicals and pesticides like "DDT" can damage an ecosystem
Which organism had the most DDT in their bodies?
Birds of prey, such as peregrine falcons and bald eagles, had some of the highest levels of DDT in their bodies due to biomagnification through the food chain. This accumulation of DDT caused reproductive issues and population declines in these species. Efforts to ban DDT and other harmful pesticides have helped to reduce these impacts.
Did Rachel Carson's book Silent Spring approve the use of DDT and other insecticides?
No. It helped awaken the public to the use of it and helped show the effects of DDT and pesticides on the environment. It was named Silent Springs because she believed that the pesticide would kill the birds and they wouldn't be there in the spring to sing.
The DDT problem is a good example of how pesticides can contaminate human health through what?
the food chain
How did grey falcons become endangered?
They got endangere because of the use of DDT and oher pesticides basicly the DDT poisons the rabbits and stuff and in turn poison the falcons
Which pesticides are most lipophilic?
Organochlorine pesticides, such as DDT and chlordane, are known to be highly lipophilic. These compounds tend to accumulate in fatty tissues due to their molecular structure, which can lead to bioaccumulation in organisms within the food chain.
