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 .
a cicada is harmful because they take pollen from plants
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.
Bacteria can be both harmful and helpful
Sandpaper is both helpful and harmful.
they are helpful not harmful to plants
harmful
Depends on what part of "harmful" or "helpful" you are referring to.
helpful
Helpful
helpful
Harmful bacteria will harm you. Helpful bacteria will help you.