Test Prep Optometry Admission OAT Dumps in PDF

It is most likely that you have never had diphtheria. You probably don’t even know anyone who has suffered from this disease. In fact, you may not even know what diphtheria is. Similarly, diseases like whooping cough, measles, mumps, and rubella may all be unfamiliar to you. In the nineteenth and early twentieth centuries, these illnesses struck hundreds of thousands of people in the United States each year, mostly children, and tens of thousands of people died. The names of these diseases were frightening household words. Today, they are all but forgotten. That change happened largely because of vaccines.
You probably have been vaccinated against diphtheria. You may even have been exposed to the bacterium that causes it, but the vaccine prepared your body to fight off the disease so quickly that you were unaware of the infection. Vaccines take advantage of your body’s natural ability to learn how to combat many disease-causing germs, or microbes. What’s more, your body remembers how to protect itself from the microbes it has encountered before. Collectively, the parts of your body that remember and repel microbes are called the immune system. Without the proper functioning of the immune system, the simplest illness – even the common cold – could quickly turn deadly.
On average, your immune system needs more than a week to learn how to fight off an unfamiliar microbe. Sometimes, that isn’t enough time. Strong microbes can spread through your body faster than the immune system can fend them off. Your body often gains the upper hand after a few weeks, but in the meantime you are sick. Certain microbes are so virulent that they can overwhelm or escape your natural defenses. In those situations, vaccines can make all the difference.
Traditional vaccines contain either parts of microbes or whole microbes that have been altered so that they don’t cause disease. When your immune system confronts these harmless versions of the germs, it quickly clears them from your body. In other words, vaccines trick your immune system in order to teach your body important lessons about how to defeat its opponents.
Which statement is not a detail from the passage?

It is most likely that you have never had diphtheria. You probably don’t even know anyone who has suffered from this disease. In fact, you may not even know what diphtheria is. Similarly, diseases like whooping cough, measles, mumps, and rubella may all be unfamiliar to you. In the nineteenth and early twentieth centuries, these illnesses struck hundreds of thousands of people in the United States each year, mostly children, and tens of thousands of people died. The names of these diseases were frightening household words. Today, they are all but forgotten. That change happened largely because of vaccines.
You probably have been vaccinated against diphtheria. You may even have been exposed to the bacterium that causes it, but the vaccine prepared your body to fight off the disease so quickly that you were unaware of the infection. Vaccines take advantage of your body’s natural ability to learn how to combat many disease-causing germs, or microbes. What’s more, your body remembers how to protect itself from the microbes it has encountered before. Collectively, the parts of your body that remember and repel microbes are called the immune system. Without the proper functioning of the immune system, the simplest illness – even the common cold – could quickly turn deadly.
On average, your immune system needs more than a week to learn how to fight off an unfamiliar microbe. Sometimes, that isn’t enough time. Strong microbes can spread through your body faster than the immune system can fend them off. Your body often gains the upper hand after a few weeks, but in the meantime you are sick. Certain microbes are so virulent that they can overwhelm or escape your natural defenses. In those situations, vaccines can make all the difference.
Traditional vaccines contain either parts of microbes or whole microbes that have been altered so that they don’t cause disease. When your immune system confronts these harmless versions of the germs, it quickly clears them from your body. In other words, vaccines trick your immune system in order to teach your body important lessons about how to defeat its opponents.
What is the meaning of the word virulent as it is used in the third paragraph?

A charged particle is traveling to the right with its magnetic field coming into the page (or screen). Which direction does its force face?

Rank the following in the correct order of increasing wavelength:

Two guys are sitting on a playground Merry-Go-Round. Which of the following statements is correct?

A car's velocity history is displayed in the graph below. What is the displacement of the car from 0 s to 10 s?

A spring is sitting in an equilibrium position. What would happen to the force of the spring if you pulled the spring to a length double of that of its equilibrium?

In the following circuit, identify the current going through I3.