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the immune system
The immune system.
the immune system helps protect the body inside and outside using red blood cells and white blood cells it helps attack the diseases and defends your body from and any other thing that may be harmful
The immune system produces antibodies to defend against allergens.
Your immune system defends against STD's with structural defenses like gastric juices and the mucus linings. For more info on the parts of the immune system follow the related question.
It is the body's immune system.
Food allergies occur when the immune system mounts an attack on certain proteins in certain foods. The substances in the food that trigger this immune-system response are called allergens. The immune system is a complex network of cells and molecules that help defend the body against foreign substances. When a properly functioning immune system detects a foreign substance, it responds to this threat by producing proteins called antibodies against the invaders. The antibodies will recognize and attack this foreign substance when they next encounter it. This "battle" is what causes the allergy symptoms.
fight against illnesses
i think the immune system is just a bunch of whte blood cells acting to help defend the body against deaseses, viruses, etc.
You wouldn't be able to defend against germs.
The immune system reacts to foreign substances.
They defend the body against both infectious disease and foreign materials.