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Biochemistry & the environment answers

1. (a) Dichlorodiphenyltrichloethane (b) It is thermodynamically stable so does not break down easily and it has very little polarity so is able to form weak intermolecular van der Waals’ type forces of attraction with molecules of fat. (c) The DDT is absorbed by insects, which are then eaten by small animals, which in turn are eaten by larger animals. At each stage of the food chain the concentration of the DDT in...

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