Understanding Bacterial Infections and Fitness

What type of germ causes strep throat?

• A virus

• A fungus

• A bacteria

• A parasite

In biology, what does it mean for an organism to have "fitness"?

• How long the organism lives

• How strong the organism is

• How many offspring the organism has

• How fast the organism can move

How do variations and mutations appear in living things?

• Organisms choose to change their traits

• They are always harmful to the organism

• They happen by chance

• They only happen in animals like frogs

Why should antibiotics only be used for bacterial infections?

• They are very expensive and should be saved

• They do not work against viruses and can lead to resistance

• They can make you feel tired and weak

• They are difficult to find in stores