Answers1. A region so arid because of little rainfall that has no vegetation at all. ________________2. A large area that has many trees and other plants. _________________3. The star that the Earth revolves around and that gives the Earth heat and light. ___________4. The part of a plant that is often brightly colored and it usually lasts a short time. _______________5. They are found on the margins of the ocean and are partially enclosed by land. ________________