Which of the following is considered your body's first line of defense against infection?

The first line of our body defence are the barriers, may be physical or chemical. These barriers include skin, tears, mucus, cilia, stomach acid and white blood cells specially neutrophils. These barriers are always ready and prepared to defend the body from infection. Skin forms a waterproof mechanical barrier. Disease-causing germs must cross the skin and other first line of defence in order to cause diseases. If first line of defence is broken, the second line of defence within your body is activated to fight against germs.

bradykinin is a physiologically and pharmacologically active peptide of the kinin group of proteins, consisting of nine amino acids.

transformative rocks are the stones that emerge from the transformation of existing rock composes in a procedure called changeability, implies changing of structures. transformative rocks are shaped from alternate shakes that are changing a result of warmth or weight connected. one of this model is the earth developments that making rocks profoundly cover or crushed which will make the stones warmed and put under awesome weight. they are not softening but rather the minerals they are containing are changed synthetically that will shape transformative rocks. now and again different rocks are shaped when the others are near some liquid magma and getting warmed.