"Focus" Questions

The following questions appear at the beginning of each segment in the television broadcast, The Case of the Biological Biosphere.

Segment 1

• What is agar and what is it used for?
• How are bacteria and viruses different?
• How does a quarantine work?

Segment 2

• What various tissues make up the skin?
• What are three kinds of bacteria?
• What is an epidemic?

Segment 3

• What is the immune system?
• How can you strengthen the immune system?
• What is mucus and how does it help protect the body from infection?

Segment 4

• What are physiological losses?
• What are endorphins and how do you get them?
• What do astronauts do when they get sick in space?