---

After the "Ecology and Ecosystems" lecture and readings you should be able to answer and discuss the following questions.

Define "environ".

Define "environment".

Define "environmental science".

Who is the author of book "The Closing Circle"?

Why did he write this book?

How does this author define the term "ecosystem"?

State and briefly describe the First Law of Ecology.

Give an example of the First Law.

State and briefly describe the Second Law of Ecology.

Give an example of the Second Law.

State and briefly describe the Third Law of Ecology.

Give an example of the Third Law.

State and briefly describe the Fourth Law of Ecology.

Give an example of the Fourth Law.

---