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BIOMAGNIFICATION OF DDT

Across
A bird of prey called the ______has a greater concentration of DDT in its body than the perch fish it eats. (129)
When eggs break too soon, due to DDT contamination, bird _______die. (129)
Each time a bird feeds on a fish, the bird, the bird___________more DDT in its fatty tissues. (128)
The buildup of pollutants at higher levels of the food chain is called _________.(312)
Biomagnification has alarming consequences for organisms at the top of the_____chain. (312)
Down
Large concentrations of DDT may kill an organism, cause _______, weakens its immune system.
DDT is also weakens the _______of bird eggs or impair the ability to reproduce. (129)
Some of the _____ enter the bodies of tiny, bottom-dwelling organisms such as insect______and Crustaceans. (312)
DDT is still legal in some countries, where it is used in large quantities to eliminate _________. (129)
One hundred little fish containing the DDT are eaten by one big_______. (312)