Plasmids are circular DNA found in bacteria that harbor a small number of genes for particular functions. They can be populated among bacteria cells and give rise to such properties as drug resistance or the ability to cause clinically morbid conditions (virulence). The bacteria Klebsiella pneumoniae (Kp) is a pathogen that causes pneumonia. A recent outbreak of pneumonia was caused by strains of Kp containing mosaic plasmids that carried both multi-drug resistant (MDR) and virulence genes, which are commonly found on different plasmids in previously isolated bacteria clones. Experts warned that the newly identified Kp strains with both MDR and virulence determinants posed high risks to public health. Required:
What is the negative consequence of having Kp strains with both drug-resistance and virulence-determining elements?

b c a d mark me

a fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing energy originating in ancient photosynthesis.[1] the age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years.[2] fossil fuels contain high percentages of carbon and include petroleum, coal, and natural gas.[3] other commonly used derivatives include kerosene and propane. fossil fuels range from volatile materials with low carbon to hydrogen ratios like methane, to liquids like petroleum, to nonvolatile materials composed of almost pure carbon, like anthracite coal. methane can be found in hydrocarbon fields either alone, associated with oil, or in the form of methane clathrates.

the theory that fossil fuels formed from the fossilized remains of dead plants by exposure to heat and pressure in the earth's crust over millions of years was first introduced by andreas libavius "in his 1597 alchemia [alchymia]" and later by mikhail lomonosov "as early as 1757 and certainly by 1763".[4] the first use of the term "fossil fuel" was by the german chemist caspar neumann, in english translation in 1759.[5]

in 2017 the world's primary energy sources consisted of petroleum (34%), coal (28%), natural gas (23%), amounting to an 85% share for fossil fuels in primary energy consumption in the world.[6] non-fossil sources in 2006 included nuclear (8.5%), hydroelectric (6.3%), and others (geothermal, solar, tidal, wind, wood, waste) amounting to 0.9%.[7] world energy consumption was growing at about 2.3% per year. in 2015 about 18% of worldwide consumption was from renewable sources.[8]