Final answer:
The National Park Service manages memorials, wildlife refuges, ecosystems, and endangered species.
Step-by-step explanation:
The National Park Service manages a variety of things, including memorials, wildlife refuges, ecosystems, and endangered species. Memorials are places dedicated to important people or events, while wildlife refuges are areas set aside to protect and preserve wildlife. Ecosystems refer to the interconnected community of living organisms and their environment, and the National Park Service manages and protects these as well. Lastly, the National Park Service works to protect and conserve endangered species, which are species at risk of extinction.
Learn more about National Park Service management