They avoid dust entering the nostrils.
Dust can enter the outer ear, which can be washed just like any other body part. The eardrum prevents dust from entering the middle ear.
It stops harmful particles of dust, bacteria etc. from entering into the body
Your skin and your mucus membranes are your body's first line of defense against any pathogen whether that be dust, or a virus!
The skin is only a defense to stop bacteria from entering the body.
no
The hairs and the mucus inside the nose trap and collect dust, bugs and other debris and prevent it from entering the lungs.
It is to prevent dust from wood from entering your eye.
Cilia protect your body from pathogens up to a certain extent. The cilia in your lungs prevent dust particles and other such particles you breathe from entering your lungs by trapping them and sweeping them away. The cilia located on the cell membrane prevents certain substances from entering the selectively permeable cell membrane through that same manner. However, if you get a cut or something, cilia are not really going to protect pathogens from entering your body from that cut.
The stuff is sticky and there are tiny hairs that move sheets of it towards the back of your throat and you swallow it. Mucous has a job of trapping bacteria, pollen or even insects and it tries to prevent them from entering the body.
because the gravity is entering the body of ekonomiks....... because the gravity is entering the body of ekonomiks....... because the gravity is entering the body of ekonomiks.......
to avoid dust an decrease reflection