write a detailed seven sentence paragraph that explains the original use of DDT and how much it was used.

How does DDT work?

• DDT affects the nervous system by interfering with normal

nerve impulses (2).

How toxic is DDT?

Animals

• DDT is slightly to moderately acutely toxic to mammals, including people, if eaten. See box on LaboratoryTesting.

• DDT is poorly absorbed through mammalian skin, but

it is easily absorbed through an insect’s outer

covering known as an exoskeleton (2).

• Laboratory animals exposed to DDT develop

hyperexcitabiliy, tremors, incoordination, and

convulsions (1). See boxes on Toxicity Category and

LD50/LC50.

• Animals given potentially fatal doses of DDT develop

liver lesions and those given DDT over a long period

of time develop liver changes (1).

Explanation: