70)
staph infections, caused by the bacterium staphylococcus aureus, are increasing in frequency and are more difficult to treat
with antibiotics. many staph infections are now caused by mrsa, and methicillin-resistant strain of s. aureus. what explains the
more widespread phenomenon of mrsa prevalence in staph infectiond?
vaccines for mrsa have become not effective because of changes to
human immune systems.
the presence of antibiotics induced the bacterial genomes to mutate and
develop resistance to the drug.
decreased hospital sanitation practices to save money have resulted in
increased presence of resistant staph infections.
selective pressures by excessive antibiotic use have increased the
frequency of resistant strains of s. aureus over the last few decades.

answer: glucoamylase presented optimum activity at temperature of 55â°c, and, in the glycosidic bonds from the non-reducing ends of starch, resulting in the production of glucose. source and type of fermentation can affect the enzyme's properties

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identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.