why do some bacteria become resistant to antibiotics

why do some bacteria become resistant to antibiotics

A: Bacteria can become resistant to antibiotics through several ways. Some bacteria can БneutralizeБ an antibiotic by changing it in a way that makes it harmless. Others have learned how to pump an antibiotic back outside of the bacteria before it can do any harm. Some bacteria can change their outer structure so the antibiotic has no way to attach to the bacteria it is designed to kill. After being exposed to antibiotics, sometimes one of the bacteria can survive because it found a way to resist the antibiotic. If even one bacterium becomes resistant to antibiotics, it can then multiply and replace all the bacteria that were killed off. That means that exposure to antibiotics provides selective pressure making the surviving bacteria more likely to be resistant. Bacteria can also become

 why was the publication of common sense so important

why was the publication of common sense so important

Written and published in 1775 and 1776 respectively,P Common Sense Pis a vastly influential piece of political literature anonymously written by Thomas Paine in order to spark an intellectual conversation on the topic of American independence from Great Britain. Paine published and distributed the sermon-like persuasive piece throughout the colonies with the intent of convincing the colonists to revolt against the crown. It is interesting to note that it is truly written in the format of a sermon with many Protestant beliefs entwined in the text as an added means to establish common ground amongst the colonists and work to further persuade them. ...

 your slingbox is not compatible with dish anywhere. error 1

your slingbox is not compatible with dish anywhere. error 1

What browsers and systems are supported by Watch on Slingbox. com? Here's a guide to which browsers and computer platforms are supported by Watch on Slingbox. com. N/S: This browser/system combination is Not Supported or recommended for use. You can only configure your Slingbox using IE or Firefox on Windows, or Safari or Firefox on Mac OS X. To set up a Slingbox M1 or a Slingbox M2, you must use Slingplayer for Desktop. ...

 why do people color eggs for easter

why do people color eggs for easter

It s the kind of question that gets asked again every year? So why do we color eggs to celebrate the resurrection of the LORD? I used to pester my mom with this sort of question all the time when I was growing up! But Now that I m grown I ve learned to do the research for myself and I m happy to provide the answer. You see back in the early days of the church nearly everyone but the clergy was illiterate, so everything was symbolic. It s still very much that way in the eastern orthodox churches (the symbolism part not the illiteracy part) We had this extended system of cascading symbols that took place throughout the year called liturgy which most churches have now reduced down to it s most basic elements. But back in the day Liturgy was everything. The liturgy to prepare for the season

 why do we consider blood as a connective tissue

why do we consider blood as a connective tissue

Name the components of the formed elements in the blood and mention one major function of each of them. Q2 What is the importance of plasma proteins? (b) RBC. Q4 Why do we consider blood as a connective tissue? What is the difference between lymph and blood? What is meant by double circulation? What is its significance? (b) Open and Closed system of circulation Q8 Describe the evolutionary change in the pattern of heart among the vertebrates. ...

 why was king edward called the confessor

why was king edward called the confessor

Edward the was the first Anglo-Saxon and the only king of England to be canonised, but he was part of a tradition of (uncanonised) English royal saints, such as, a daughter of, a daughter of, and the boy-king. With his proneness to fits of rage and his love of hunting, Edward the Confessor is regarded by most historians as an unlikely saint, and his canonisation as political, although some argue that his cult started so early that it must have had something credible to build on. Edward displayed a worldly attitude in his church appointments. When he appointed Robert of Jumiges as Archbishop of Canterbury in 1051, he chose the leading craftsman to replace Robert as. Robert refused to consecrate him, saying that the pope had forbidden it, but Spearhafoc occupied the bishopric for several

 why do pregnant women eat ice chips

why do pregnant women eat ice chips

Do you enjoy eating ice while pregnant but you re not sure why other than вyou just feel like itв? This article just might help you to demystify this quirky ice crunching habit youвve formed, so you can finally understand whatвs going on inside your body! The intense urge to eat ice cubes during pregnancy is considered to be a form of pica. Pica is characterised by eating non-food items such as clay, chalk, soil, paint chips and plaster. The eating habit is thought to be compulsive, and the consumed items hold little in the way of nutritional value. Pica can affect anyone, though it is most common in children and pregnant women. Technically speaking, pagophagia is the name given to the eating of ice. Why Do So Many Women Crave Eating Ice While Pregnant? It is not yet known exactly what

 why do we make sign of the cross

why do we make sign of the cross

Since we make the Sign of the Cross before and after all of our prayers, many Catholics don t realize that the Sign of the Cross is not simply an action but a prayer in itself. Like all prayers, the Sign of the Cross should be said with reverence; we shouldn t rush through it on the way to the next prayer. Using your right hand, you should touch your forehead at the mention of the Father; the lower middle of your chest at the mention of the Son; and the left shoulder on the word Holy and the right shoulder on the word Spirit. Eastern Christians, both Catholic and Orthodox, reverse the order, touching their right shoulder on the word Holy and their left shoulder on the word Spirit. In the name of the Father, and of the Son, and of the Holy Spirit. Amen. Why Do Catholics Cross Themselves

 why do water pipes burst in winter

why do water pipes burst in winter

This is because water inside them expands as it gets close to freezing and this causes an increase in pressure inside the pipe. When the pressure gets too high for the pipe to contain it ruptures. Although this process seems natural it is a chemical anomaly. When a liquid cools molecules will slow down which allows the molecules to get closer together andincreases the density of liquid. ...

 why were the committees of correspondence formed

why were the committees of correspondence formed

After the French and Indian War came to an end, the colonists expected some changes in their relationship with the British, especially since they'd supported them in battling the French and the Native Americans. However, the colonists were disappointed when the British were less than respectful towards them and began to see British acts and taxes as tyrannical and unfair. These included the Sugar Act and the Currency Act, which were meant to offset the cost of the war at the expense of the colonists. In response, Samuel Adams, one of our Founding Fathers, created the first Committee of Correspondence in Boston in 1764. Samuel Adams felt that the Currency Act in particular, which the British used to regulate colonial currency, was unacceptable. In establishing the Boston Committee of

1 ... 14 15 16 17 18 19 20 21 22 ... 4573