minimum 100 words for each bullet point. (300 words total) use in text citations and recent articles as references. APA formatdon’t plagiarise!! Why might organisms in the upper respiratory tract change when the normal flora is replaced with transient flora?What are the types of streptococcal hemolysis? Describe.How is Streptococcus pneumoniae distinguished from other streptococci that have the same hemolytic properties? What additional tests are needed or performed?