The chemical that caused decline of the eagle population is pesticide DDT
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They are an addition to your body that is not passed through DNA
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Answer:
The shark wont die unless it is hurt very badly by the puffer fish. The puffer fish is able to kill all of the animals listed but the puffer fish wouldn't die if he uses his abilities. I would say the sting ray.
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Answer:
separate or unzip the two strands of the double helix.
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Mark as brainslist. Hope this helps.