You are asked todetermine the concentration of a bacterial culture. You take 1.0 mLof the culture and aID it to 4.0 mL of water (Tube #1). You thentake 1.0 mL from Tube #1 and aID it to 14 mL of water (Tube #2).Finally, you take 1.0 mL from Tube #2 and aID it to 19 mL of water(Tube #3). You then spread 0.20 mL from Tube #3 onto a nutrientagar plate and incubate the plate at 37°C. After 24 hours, youcount 215 colonies on the plate.
A. By what factor has the original culture beendiluted in Tube #1? B. By what factor has the ORIGINAL culturebeen diluted in Tube #2? C. By what factor has the ORIGINAL culturebeen diluted in Tube #3? D. What is the concentration of the original bacterial culture?
Absolutely spot on. I have had the best experience with Elite Academic Research and all my work have scored highly. Thank you for your professionalism and using expert writers with vast and outstanding knowledge in their fields. I highly recommend any day and time.
Stuart L
Thanks for keeping me sane for getting everything out of the way, I’ve been stuck working more than full time and balancing the rest but I’m glad you’ve been ensuring my school work is taken care of. I'll recommend Elite Academic Research to anyone who seeks quality academic help, thank you so much!
Mindi D
Brilliant writers and awesome support team. You can tell by the depth of research and the quality of work delivered that the writers care deeply about delivering that perfect grade.
Samuel Y
I really appreciate the work all your amazing writers do to ensure that my papers are always delivered on time and always of the highest quality. I was at a crossroads last semester and I almost dropped out of school because of the many issues that were bombarding but I am glad a friend referred me to you guys. You came up big for me and continue to do so. I just wish I knew about your services earlier.
Cindy L
You can't fault the paper quality and speed of delivery. I have been using these guys for the past 3 years and I not even once have they ever failed me. They deliver properly researched papers way ahead of time. Each time I think I have had the best their professional writers surprise me with even better quality work. Elite Academic Research is a true Gem among essay writing companies.
Got an A and plagiarism percent was less than 10%! Thanks!
Jermaine Byrant
Nicole Johnson
OVER
RATING
YEARS
