Which is a resource that the National Park Service manages? memorials
wildlife refuges
ecosystems
endangered species

the relative standard reduction potential of the half-cell in which reduction occurs; more positive than the other half-cell. reduction is a chemical process in which electrons are added to an atom or an ion; it always occurs accompanied by oxidation of the reducing agent.

c should be the answer

it marks things for degradation via the proteasome. it alters there celluar location.