The first line of defence<span> (or outside </span>defence<span> 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.</span>
Answer:
"Let me see if I can establish a rapport and calm him."
90% of alcohol a person drinks will be oxidized by the liver