a cicada is harmful because they take pollen from plants
Helpful
Depends.. 95% of all microorganisms are helpful. Most protists are usually helpful.
mold can be helpful and harmful. it really de pends on wat u think
No it is not .
There are many, many types of bacteria. They can be both harmful and helpful to us. Also, even if there were to be helpful in a certain part of the body they may also be a pathogen in another.
If you need help I recommend you type in the specific question you need help with
it can be helpful or harmful
sometimes they are helpful and harmful.
Sandpaper is both helpful and harmful.
Bacteria can be both harmful and helpful
they are helpful not harmful to plants
harmful
Helpful
helpful
helpful
Depends on what part of "harmful" or "helpful" you are referring to.
Harmful bacteria will harm you. Helpful bacteria will help you.