they carry disease that can be harmful
About as harmful as getting a hard nipple.
Flies can have various harmful effects on humans. For example, they may give birth to maggots in food and contaminate it.
flies are harmful because it can get your food dirty and it is like a mosquito
because they can carry diseases which can be harmful to humans
no it will not harm them
it is harmful because... if thge flies... will...
They eat flies that are contaminated with harmful chemicals.
They are harmful and spread diseases to other people.
They are harmful and spread diseases to other people.
High sounds alone are unlikely to kill flies. Flies have a remarkable ability to detect and avoid danger, including sounds that are harmful to them. Using other methods, such as fly swatters or traps, are more effective at eliminating flies.
White flies, certain spiders, and birds.