1) Physical barrier. 2) "Normal bacteria" will resist new-comers.
It is used for protection against the outside environment
Stool Analysis detects the presence of pathogenic microorganisms such as yeast, parasites, and bacteria which contribute to chronic illness and neurological dysfunction. It provides helpful information about prescription and natural products effective against specific microorganism strains detected in the sample. The test also evaluates beneficial bacteria levels, intestinal immune function, overall intestinal health (presence of occult blood, short chain fatty acids analysis, pH, and mucus) and inflammation markers
Antibiotics are the chemicals produced by microorganisms to inhibit the growth of other microorganisms. most of the antibiotics are produced by fungi. Very few are produces by bacteria. For example the antibiotics Monobactum, Bacitracin and Polymixin B are produced by bacteria. They almost all act against other bacteria and not viruses. ( Amphotericin B acts against fungi and is too toxic.) In fact you do not have good drugs against viruses and then you conveniently avoid to talk about it.
stratum corneum functions as a physical barrier to light and heat waves, microorganisms(e.g. bacteria, fungi, protozoa & viruses) and most chemicals.
Antibiotic: a chemical produced by microorganisms to inhibit or kill other microorganisms.Antiseptic: a chemical that inhibits the growth of microorganisms on living tissue.
The slime capsule protects the Bacterium from desiccation ( drying out )
The immune system
antibiotics are the primary and secondary metabolites of many fungi and some bacteria which are used against pathogenic microorganisms. usually antibiotics are protein in nature but may also occure in conjugated form like glycopeotide etc......
Acid in the stomach is a primary bodily defense against microorganisms. Obviously, it can be overwhelmed or bypassed, but it is toxic to many microorganisms.
The majority of diseases are caused by microorganisms (mostly bacteria, but sometimes viruses) which enter a person's body and launch an attack on their cells. Depending on the person, diseases may also be caused by stress-induced situations, as your immune system does not function well when you are undfer stress, and will therefore not be effective against fighting diseases as well as a person with a healthy immune system. Bacteria and Viruses are transferred through the air or environment, or an open wound in the skin; although, when exposed to bacteria or viruses which your body has developed an immunity to, you will not show signs of infection.