Methicillin-resistant-staphylococcus-aureus (MRSA) infection is caused by the bacteria called staphylococcus aureus, which leads to skin infections in mild form and respiratory diseases in severe form.
- Hospital-Acquired MRSA – is associated with infections that are caused due to exposure to hospital or nursing home environments.
- The infection can be caught through direct contact or contaminated hands.
- Sometimes touching used surgical instruments or infected bedsheets can also pass on the infection leading to severe pneumonia or blood infections.
- Hence, people hospitalized for longer durations, live in nursing homes, or visit hospitals regularly without protection are prone to get a staph infection.
- Hospital acquired MRSA often causes severe symptoms compared to community-acquired MRSA due to prolonged exposure to bacteria.
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Answer: B
They haven’t changed much over time as they occupied the same habitat/niche, therefore, their genetic material has not changed much.
Answer: Option D
Explanation:
Apolipoprotein B is a type of apolipoprotein that bind lipids including cholesterol and forming the main organizing protein in lipoproteins such as in the low density lipoprotein. The low density lipoprotein serves as a vehicle to transport cholesterol into the cell through the receptor mediated endocytosis process. This process allows for the movement of larger molecules from the outside of the cell into the cell. Thus apolipoprotein can bind as ligands to the LDL receptors and allow for the transport of fats into the cell..
The process that moves small rock pieces during the sedimentary rock formation is erosion.
The carrying away of small rock particles by the effect of wind, water or ice.It is a surface phenomenon on the earth's crust and then the transportation takes place.
This is a natural phenomenon caused by the dynamic activity of the agents that can cause erosion.
