No, flies are annoying, they are consider pests.
Well flies eat animal dropping so if there were no flies the world would be a smelly place. Also dung beetles help with this cycle.
Like all organisms, Flies do not exist to serve a purpose but instead because they reproduce, so that by the time a generation of flies die it will have already made the next generation.
yes
it is harmful because... if thge flies... will...
Morgan use fruit flies because they were cheap and reproduced quicky.
birds are vry useful to us (eg) fire flies ,
If you keep it in your house, it will keep away flies.
They have no 'use' other than food for spiders in the food chain.
No one likes flies and bugs insects so SPIDER TO THE RESCUE
Yes, cows have tails. Tails are very useful for swishing flies away.
The Wolf spider is useful because it eats insects which are known to attack humans, like mosquitoes and biting flies.
well a spider can help by eating flies or like a dragonflies lavae eat mosquito larvae alot of bugs are helpful yet mysterious
Most useful and more useful.
more useful, the most useful
Many people things houseflies are disgusting creatures that transmit disease to humans. However, when they're not in your home, flies provide a useful service to the environment as scavengers.