Article: All modern birds lie within the crown group Aves (alternately Neornithes), which has two subdivisions: the Palaeognathae, which includes the flightless ratites (such as the ostriches) and the weak-flying tinamous, and the extremely diverse Neognathae, containing all other birds. These two subdivisions are often given the rank of superorder, although Livezey and Zusi assigned them "cohort" rank. Depending on the taxonomic viewpoint, the number of known living bird species varies anywhere from 9,800 to 10,050.

Question: What is the number range of living bird species?
Ans: 9,800 to 10,050


Article: In the early 5th century, the deep crisis suffered by the Roman Empire allowed different tribes of Central Europe (Suebi, Vandals and Alani) to cross the Rhine and penetrate into the rule on 31 December 406. Its progress towards the Iberian Peninsula forced the Roman authorities to establish a treaty (foedus) by which the Suebi would settle peacefully and govern Galicia as imperial allies. So, from 409 Galicia was taken by the Suebi, forming the first medieval kingdom to be created in Europe, in 411, even before the fall of the Roman Empire, being also the first Germanic kingdom to mint coinage in Roman lands. During this period a Briton colony and bishopric (see Mailoc) was established in Northern Galicia (Britonia), probably as foederati and allies of the Suebi. In 585, the Visigothic King Leovigild invaded the Suebic kingdom of Galicia and defeated it, bringing it under Visigoth control.

Question: At the end of which year did Central Europe tribes invade the Roman Empire?
Ans: 406


Article: According to the 2009 American Community Survey, White Americans of both Hispanic and non-Hispanic origin represented over one-fifth (22.9%) of the Bronx's population. However, non-Hispanic whites formed under one-eighth (12.1%) of the population, down from 34.4% in 1980. Out of all five boroughs, the Bronx has the lowest number and percentage of white residents. 320,640 whites called the Bronx home, of which 168,570 were non-Hispanic whites. The majority of the non-Hispanic European American population is of Italian and Irish descent. People of Italian descent numbered over 55,000 individuals and made up 3.9% of the population. People of Irish descent numbered over 43,500 individuals and made up 3.1% of the population. German Americans and Polish Americans made up 1.4% and 0.8% of the population respectively.

Question: How much of the Bronx was non-Hispanic white as of 2009?
Ans: 34.4%


Article: Phage therapy is another option that is being looked into for treating resistant strains of bacteria. The way that researchers are doing this is by infecting pathogenic bacteria with their own viruses, more specifically, bacteriophages. Bacteriophages, also known simply as phages, are precisely bacterial viruses that infect bacteria by disrupting pathogenic bacterium lytic cycles. By disrupting the lytic cycles of bacterium, phages destroy their metabolism, which eventually results in the cell's death. Phages will insert their DNA into the bacterium, allowing their DNA to be transcribed. Once their DNA is transcribed the cell will proceed to make new phages and as soon as they are ready to be released, the cell will lyse. One of the worries about using phages to fight pathogens is that the phages will infect "good" bacteria, or the bacteria that are important in the everyday function of human beings. However, studies have proven that phages are very specific when they target bacteria, which makes researchers confident that bacteriophage therapy is the definite route to defeating antibiotic resistant bacteria.

Question: What has been talked about to treat resistant bacteria?
Ans:
Phage therapy