Transcribed Image Text: 4) 0.1 ml of a blood sample is added to 9.9 ml of sterile saline.1 ml of this dilution is then added to 9 ml of sterile

Transcribed Image Text: 4) 0.1 ml of a blood sample is added
to 9.9 ml of sterile saline.1 ml of this
dilution is then added to 9 ml of
sterile saline. 1 ml of this dilution is
plated , and 37 colonies form.
is the CFU/ml of the blood sample?
5) 5 ml of urine is added to 70 ml of
water . 1ml of the diluted urine is
plated, and 163 colonies form.
is the CFU/ml of the urine ?

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