What is a tree? What types of trees exist in American Samoa? Objective Students will be able to: 1. Define the vocabulary terms tree and habitat. 2. Identify five species of animals that live in American Samoa's tree habitat. 3. Describe how our actions can threaten the health of our trees. 4. Learn about the role of the National Park of American Samoa in conserving trees Background One of the significant characteristics of tropical rainforests is high species diversity. Tropical rainforests are home to the majority of the world’s plant species. The flora of Samoa (the sum of the plants occurr Duration: 60 Minutes.