Answer:
probably your hands nose and mouth not too sure
Explanation:
Are there multiple choice questions?
1. Tell parents or trusted adult.
2. Call hotlines
3. Pray to God ( My opinion )
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils. Hope this helps.
