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.
I believe the answer is A) cereal is low moisture. Because bacteria can grow very easily in areas with a lot of moisture.
Homocide is the third leading cause of death
air popped corn is considered the most nutrient
