Associate the purpose with the physical barrier trap dirt an

Associate the purpose with the physical barrier. trap dirt and intruders inhospitable maintain bacterial flora bactericide

Solution

Answer=

1] Trap dirt & intruders = Mucus

2] Inhospitable = Acidity

3] Maintain bacterial flora = Dry skin

4] Bactericide = Lysozymes

explaination =

1] Mucus = Is present is every body organ it lines body organs

Mucus present in nose traps the incoming dirt particles & intruders

2] If acidity is increases then patient should inhospitable

3] dry skin contains many bact. flora

4] Lysozymes have bactericidal action