IMPACT UNIT 2 LISTENING

1. Elaine Hsiao is a microbiologist. She's also...

• a researcher and an explorer.
• a National Geographic boss.
• the forgotten organ.
• a fan of the L.A. Lakers

2. Elaine thinks that microbes...

• are very good for your health.
• should be a part of our diet.
• can impact your brain and behavior.
• are less dangerous than viruses

3. Bacteria, viruses, and other tiny organisms are...

• microbes
• bad for our health
• covid-19
• symptoms

4. Why are microbes called "the forgotten organ"?

• because if you put them all together, they weigh more or less like your brain.
• because they're an organ, but nobody talks about them.
• because students usually forget to mention microbes in their exams.

5. How many microbes are there in your body?

• About 100.000.000
• About 1.000.000.000.000.000
• About 100
• About 10.000

6. How can microbes in your gut impact your brain?

• Microbes can travel inside your body. They can reach your brain and affect it.
• Microbes in your gut can't impact your brain. They only affect your stomach.
• Microbes use cells in your intestine to send signals directly to your brain.
• Microbes use viruses in your intestine to send signals directly to your brain.

7. Elaine did a research study with...

• a mouse
• rats
• capybaras
• mice

8. In that study,

• Mice had millions of microbes inside them.
• One rat had lots of microbes, and the other didn't.
• One mouse had a gut full of microbes, and one had none.
• Both capybaras died because of microbes

9. At first, the mouse with microbes...

• was less social than the other mouse
• tried to attack the other mouse.
• was more social than the other mouse.
• was attacked by the other mouse.

10. When Elaine put microbes in the other mouse's intestine,

• it stopped attacking the other mouse.
• it got sick and died.
• it started to communicate more.
• it started eating much more food.