If possible I'd say all of them except the fourth one down (parts of ecosystems are independant) but if not I'd say the most valid one is the second one down (healthy ecosystems help animals)
Ellis island was originally built and opened as an immigration station.
Answer:
Explanation:
The key point of the Doctrine was to separate the influence in which The United States and European powers would have. Europe would have no intervention within the Western Hemisphere and likewise the United States would not become entangled in European affairs.
