Job Growth, Salary, and Related Fields. Careers in environmental science are expected to grow more rapidly in the coming years. This is due to increasing concern by governments, businesses and individuals over the environment and how to prevent environmental disasters.
Report Abuse. Answer: Mucus ----------- Stomach is protected against gastric juice by gastric-mucosal barrier. The barrier consists of three protective components: * a compact epithelial cell lining Cells in the epithelium of the stomach are bound by tight junctions that repel harsh fluids that may injure the stomach lining.
Innate Mechanical/Physical Barriers. Skin and mucous membranes, tears, coughing, sneezing; acidic secretions from skin (destroys pathogens); stomach acid and enzymes (kill microbes); saliva and tears (contain lysozymes which destroy bacteria); PREVENT ENTRANCE OF PATHOGENS INTO BODY.