![\huge\blue{\fbox{\fbox{\red{\mathcal{Hello\:World}}}}} \huge\blue{\fbox{\fbox{\red{\mathcal{Hello\:World}}}}}](https://tex.z-dn.net/?f=%5Chuge%5Cblue%7B%5Cfbox%7B%5Cfbox%7B%5Cred%7B%5Cmathcal%7BHello%5C%3AWorld%7D%7D%7D%7D%7D)
![<b><i><body bgcolor=red><marquee scrollamount="3" direction="up"><font color=yellow></b></i> <b><i><body bgcolor=red><marquee scrollamount="3" direction="up"><font color=yellow></b></i>](https://tex.z-dn.net/?f=%26lt%3Bb%26gt%3B%26lt%3Bi%26gt%3B%26lt%3Bbody+bgcolor%3Dred%26gt%3B%26lt%3Bmarquee+scrollamount%3D%223%22+direction%3D%22up%22%26gt%3B%26lt%3Bfont+color%3Dyellow%26gt%3B%26lt%3B%2Fb%26gt%3B%26lt%3B%2Fi%26gt%3B)
Why the mucus and skin are called a "First line of defence" ?
![<body bgcolor=brown><marquee scrollamount="1300" direction="left"><font color=yellow> <body bgcolor=brown><marquee scrollamount="1300" direction="left"><font color=yellow>](https://tex.z-dn.net/?f=%26lt%3Bbody+bgcolor%3Dbrown%26gt%3B%26lt%3Bmarquee+scrollamount%3D%221300%22+direction%3D%22left%22%26gt%3B%26lt%3Bfont+color%3Dyellow%26gt%3B)
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Answer:
becz bro if any damage occurs it first occurs on the skin or mucus thnx mark as branliest pls
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