It is a practice-related complaint. It's usually caused by nurses or doctors not taking precautionary measures and making sure that their hands are cleaned and that they wear masks when operating on someone or assisting in an operation. It could also be unclean untensils that are used for surgery too!
Answer:
in controlled experiment an independent variable is systematically manupulated and dependent variable is measured ; any extraneous variables are controlled
Im sure its b no im positive its b
number two is the Resistance stage
About 2,000.Hope that helps!
