Final answer:
The U.S. Fish & Wildlife Service provides federal aid to state wildlife agencies for hunting-related projects and for the conservation of endangered species, as required by the Endangered Species Act.
Step-by-step explanation:
State wildlife agencies receive federal aid for hunting-related projects through the U.S. Fish & Wildlife Service. This federal agency plays a critical role in wildlife conservation, which includes developing management plans to protect and recover endangered and at-risk species, as mandated by the Endangered Species Act (ESA) of 1973. Moreover, they ensure compliance with various other wildlife protection laws, such as the Migratory Bird Treaty Act (MBTA), to maintain sustainable populations of wildlife species and their habitats.