Question

Many bacteria do not interact with humans, but those that do can always be classified as either harmful or not harmful to humans. True or False?

Select one:
a. True. They always either hurt us or they don't.
b. False. Some are fine in small numbers, but in big numbers they can overwhelm the immune system and cause problems.
c. False. Some get worse as they age.
d. True. Once they mutate to be harmful, they stay that way.

Answer 1

@rose4825