The united states department of the interior (usdi) delegates oversight responsibility for threatened or endangered species to:

 The correct answer is : the Endangered Species Act (ESA)

Explanation: ESA was approved in 1973, its task is to conserve species of plants and animals that are in danger of extinction. ESA must provide a program for the conservation of these species. In the department of the interior ESA is administered by the United States Fish and Wildlife Service.

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