Lice is not harmful or helpful, Lice is attracted to clean hair, but when you have lice, make sure to wash your hair thoroughly and buy special lice shampoo or cream.
If you need help I recommend you type in the specific question you need help with
it can be helpful or harmful
Both: Helpful: Great pets Fun to take care of Can be food Can be trained to do things Love to cuddle Good for your mental health Harmful: U could be allergic to them They bite Can have lice/mites They scratch They distroy stuff Cost alot of money Overall, they are helpful to man
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