Students name:
Dalkys Rodriguez
Marielle Quezada
Liz Marie Martinez
Group name:
South Side Serpents.
Dalkys Rodriguez
Marielle Quezada
Liz Marie Martinez
Group name:
South Side Serpents.
Defense Barrier
Post 4 Defense Barrier The first line of defense (or outside defense 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 . Pathogenic (disease-causing) microorganisms must make it past this first line of defense...
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