The Invaders

specific immunity is distinguished by its greater selectivity and lesser speed compared to the natural immune response. In other words, cells that show specific immunity attack a single invader at a time. For example, each receptor on the cell surfaces of lymphocytes responds to only one antigen of a particular invader. One setback of this process is that full defence is delayed for a number of days and during this time, the body relies on natural immunity to restrain the disease. T-helper…

roman empire had many innovations to solve many problems here are some examples of theses innovations ,these innovations helped connect the empire and helped keep roman cities sanitary and ,also some innovations helped the roman army to keep away invaders and also help them travel. The first revolutionary innovation was the cloaca maxima this was the first sewer system ever built. It affected the people of rome by cleaning waste from the streets and help keep the city sanitary. One of the…

disorders, like Graves’ disease, the immune system begins to fight against healthy tissues in your body. Your immune system usually produces proteins, known as antibodies, in order to fight against foreign invaders like viruses and bacteria. These antibodies are produced specifically to target the invader. In Graves ’ disease, your immune system makes the mistake to producing antibodies, called thyroid stimulating immunoglobulins, that target your own healthy thyroid cells. Graves’ disease is…

our immune system is on constant patrol, searching for invaders. Many bacteria (about 95%) are actually healthy and live with us providing many helpful function, a symbiotic relationship if you will, but we are only going to focus on disease causing. As our immune cells scour our internal environment in search of invaders, once encountering one our immune cells very efficiently destroy these invaders in several ways. However, some invaders are very talented in evading our defenses, for…

the castle on the manor. The castle was built with tall, thick walls and mostly on a hill. Some even had water moats. There weren't many windows on a castle. They were small and made with no glass. Castles were meant to provide protection against invaders. They seemed to be helpful for a long time until the invention of the cannon, which was strong enough the demolish a castle's walls, which brought about the end of castle building. The Knights job in the Middle Ages was to use weapons,…

Vaccines for the longest time have been under scrutiny, for their alleged correlation with autism and other bad side effects while also having been credited for eradicated or largely eradicated many infectious diseases. The issue even came up during a recent Republican presidential debate. Under all that scrutiny the real question would be: Are vaccines more helpful or harmful? To really understand the answer to this question, one has to look at certain facts. For example, what exactly are…

London fears reverse colonialization through Dracula whereas many of Levy's white British characters fear the immigration wave. Levy's immigrants are uncanny because up until their arrival they have been imagined as primitive by many British; Stoker's invaders are…

Though both African American and Native Americans shared the bottom of the American social ladder and suffered from prejudice and discrimination, their lives were somewhat different. Both suffered at the hands of whites, but Native Americans suffered more with the almost total destruction of their society. On the other hand, it took much longer to begin improving the African American condition than it did for the Native American one. One thing is certain however, America must always remember the…

a beautiful place. But soon Rome fell, people call this the “Fall” of Rome. Rome didn’t fall for just one reason, but it did fall for many reasons. To start off, we have foreign invasions. Many times Rome was attacked by foreign invaders. An example of foreign invaders are the Huns. In document D Roman historian, Ammianus Marcellinus writes about the Huns and how they live and how they were strong to invade Rome. In the document it states, “The Huns exceed any definition of savagery.” This…

image of the airplane to directly criticize America’s use of planes to drop bombs and chemical warfare into developing countries to eliminate a foreign threat with countless causalities of innocent civilians. The Mexican people do not fear the alien invaders, they have learned to adapt and coexist, but the constant onslaught of American military force has caused more global destruction and death than the ‘monsters’ ever…