Science+questions+page+134

Angela Corrao Science page 134 questions 1-3 1. Three ways that your body defends itself against pathogens are form you eyes, nose, mouth, and skin. 2. Three different cells in the immune system are macrophage, T cells and B cells, and antibodies. The macrophage engulf, or eat any microorganisms or viruses floating around. T cells play an important role in coordinating the immune system. Many B cells make antibodies, which are proteins that attach to specific pathogens, your body is capable of making billions of different antibodies, but each antibody usually attaches to only one type of pathogen. 3. No your body can not make antibodies if you have never come on contact with a disease, because when you get a disease and your body reconizes it, your body will know to fight it oof, but if you have never had the disease before, your body will therefore take longer in the process of making your body better.