Bacteria can be both harmful and helpful
They are helpful because they clean out intestines. they are harmful because they can cause diseases
Bacteria can be helpful by deleting bad viruses and harmful by killing you
Jelly Fungi is Helpful.
Paramecium cilia are little hairs around its body that can make it move in different directions. It is beneficial to the paramecium to get food (bacteria) and there are no harmful effects.
Harmful bacteria will harm you. Helpful bacteria will help you.
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
Helpful
helpful
helpful
Depends on what part of "harmful" or "helpful" you are referring to.