Quiz on Microorganisms and the Human Body

What is the world filled with strange creatures mentioned in the text?

• The ocean

• The human body

• Outer space

• The rainforest

What are the creatures living in the human body called?

• Aliens

• Microorganisms

• Insects

• Animals

How many microorganisms are there in the human body?

• 100 million

• 100 billion

• 100 trillion

• 100 quadrillion

What is the human microbiome?

• A type of bacteria

• The bacteria living in and on the human body

• A part of the brain

• A type of virus

What is the size of the bacteria shown in the photo?

• 1 millimeter

• 1 micrometer

• 1 nanometer

• 1 centimeter

What makes the human body a good environment for bacteria?

• Its temperature

• Its food and living space

• Its moisture

• Its size

What is the purpose of coloring bacteria in the photo?

• To make them look real

• To make the photo easier to see

• To show their natural color

• To make them look bigger

What happens to the microbiome after taking antibiotics?

• It remains unchanged

• It becomes more diverse

• It loses helpful bacteria

• It only gains harmful bacteria

What is the weight range of bacteria in the human microbiome?

• 1 to 2 pounds

• 2 to 5 pounds

• 5 to 10 pounds

• 10 to 15 pounds

What happens to the gut when C. jejuni cells can't function?

• It repairs itself

• It becomes stronger

• It can't repair itself

• It produces more bacteria