Question #N1390

The study of plants and animals in their natural habitats is called ecology. Ecologists study how different species interact with each other and with their environment. The study of ecology is important for understanding the natural world and for developing ways to protect the environment. What is the purpose of this excerpt?

Which choice best states the main purpose of the excerpt?
A. To describe how ecologists study the natural world.
B. To explain the importance of the study of ecology.
C. To provide a brief overview of the field of ecology.
D. To argue that ecologists should focus on protecting the environment.