Final answer:
The ESA claim in 2007 did not specify the endangered species. The ESA protects species at risk of extinction and regulates harmful activities.
Step-by-step explanation
The endangered species that was the subject of the ESA claim in the case of shutting down pumps supplying one-third of southern California's water in 2007 was not identified in the provided information. The ESA claim in 2007 did not specify the endangered species.
The ESA protects species at risk of extinction and regulates harmful activities. The ESA protects species at risk of extinction and regulates activities that may harm these species. The ESA claim in 2007 did not specify the endangered species. The ESA protects species at risk of extinction and regulates harmful activities. It is a tool to bring species back to sustainable numbers and prevent further losses.