Non-Alaskan grizzly bears are indicator species for mountain ecosystems. In the nineteenth century, the grizzly bear nearly went
extinct in the lower forty-eight states and were eventually added to the federal Endangered Species List as a threatened species in
1975. Ranching and farming have driven the grizzly from the open plains, and today the species lives mostly in mountains and
forests. The reason for including the grizzly in the list of animal indicator species is that

Use your vocabulary words to complete the sentences below. australia and new zealand are in nature meaning they are located between temperate and tropical climates. oceania, on the other hand, has a tropical climate with numerous island chains, many of which are home to , which are islands made from coral. this entire region rests on the edges of plates, and therefore they are prone to earthquakes, volcanoes, and tsunamis. since most of the islands were formed from volcanoes, rock can be found everywhere.