1. You can't just throw that plastic bottle in the street. It's not .......... . That means it will not break down and decompose into the natural environment because it's plastic!

2. There is a lot of .......... in the Amazon rain forests. This means there is a lot of variety when it comes to living species (both animals and plants) in that lush environment.

3. Nowadays, due to the green movement, people are looking at alternative energy sources that are less harmful than oil and gas products .......... . Is an alternative source because this type of energy is produced from burning plant and animal waste material.

4. Many governments around the world try to prevent .......... so they have implemented rules and regulations that must be followed before and after scientific experiments. These are health dangers that can result from experimentation gone awry.

5. Most family doctors keep records, in the form of .......... . that refer to specific medical information about each patient. For example, doctors will record patients' ages, blood types etc.

6. An educated person who studies all living organisms in various natural environments is called a .......... .

7. .......... write about others' life stories. This type of author writes about someone else's life history.

8. Biological .......... is a very scary thing. This is when militaries use toxic, micro-organisms as weaponry.

9. If a person writes a story based on his/her own life history, this true story is called an .......... .

10. .......... is the study of living organisms and how they interact with one another in various, natural environments.