How do microbes vary among individuals of the same species?

• They are identical

• They always cause diseases

• They create a microbiome

• Their…….

What is a 'holobiont'?

• A. A tern for the human body and its microbes

• B.

• C.

• D.

What is the 'germ theory'?

• A. The concept that many diseases are caused by specific microorganisms

• B. The concept that some microbes cause diseases

• C. The idea that diseases are caused by environmental pollution

• D. The belief that diseases are caused by supernatural forces

What is the writer doing in the fifth paragraph?

• explaining how a discovery was made

• comparing scientists' theories about microbes

• describing confusion among scientists

• giving details of how microbes cause disease

How does our obsession with hygiene our bacterial balance?

• It disrupts the bacterial balance
• B. It disrupts our bacterial blance

• It has no effect on bacterial balance
• It only affects certain types of bacteria

16. What is a growing problem associated with bacterial disruption?

• A. Soaring rates of allergies and immune problems

• B.

• C.

• D.

What does new research reveal about the use of household detergents and antibacterial products?

• A

• B

• C. They actually destroy the microbes that normally keep dangerous gems at pay

• D

What is one benefit of keeping a dog as a pet, according to recent research?

• A

• B. Exposure to a diverse range of bacteria that my help prrotect against allergies late.

• C

• D

How did the discovery of microbes change human history?

• A.

• B.

• C. It revealed the dangers posed by some bacterial

• D.

What is one example of how microbes can be manipulated to improve human health?

• Developing a cocktail of microbes to coat surfaces and fight off infections.