Describe the reason why bacterial population in a culture tends to grow slowly under unfavorable conditions like the presence of poison or antibiotics. Also, explain how the population is restored in the same adverse conditions in the same culture, in due course of time.

Q: Pathogen population size correlates with the severity of an infection. What is the most inexpensive,…

A: To quantify bacteria, we can use methods like:Plate Counting (CFU): Dilute and plate samples, count…

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A: In microbiology laboratories the number of microorganisms present in a particular sample is…

Q: Why is Micrococcus luteus a common contaminate on bacteriological media?

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Q: List the four phases of the bacterial growth curve:

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Q: Use the information in the tables below to determine the most probable number of bacteria per 100 mL…

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A: Organism / MediaNutrient Agar (NA)Eosin Methylene Blue (EMB)Mannitol Salt Agar (MSA)Escherichia…

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Q: refer to the diagram left hand side is Tetracycline  and right hand side is ampicillin. please help…

A: A disk diffusion test helps to test the susceptibility of any bacteria against different…

Q: Compare and contrast three common laboratory techniques forseparating bacteria in a mixed sample.

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A: Hi! Thanks for your question. As you have posted multiple questions, I am answering only the first…

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A: Given  Number of positive tube  0.1 ml = 4  0.01 ml = 1  0.001 ml = 0

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Q: Consider the table below. What is the TDT for E. coli at 70 C? Please include the unit.

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Population Growth

R and K Selection

R and K selection are concepts in ecology used to describe traits in the fluctuation of a population or population dynamics. For example, they describe the life-association traits between parent and offspring, such as quantity or number of young ones born at a time, quality of parental care, the age to maturity, and reproductive effort.