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Cloud [144]
3 years ago
5

I really need to know this pls help me

Biology
2 answers:
TEA [102]3 years ago
7 0
Well are you gonna show us the question
Marizza181 [45]3 years ago
6 0
What is the question
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If we have a plate that has 2500 colonies on it, can we use this plate to calculate CFU's
AleksAgata [21]

No, the solution with bacteria in it needs to be diluted in order to be in the range of 30 – 300.

A colony-forming unit –CFU is used to estimate the number of viable (ability to divide by binary fission) microbes in a sample.  

A sample of microbes is diluted and spread on a plate. Then, the number of colonies is counted, assuming that each colony have grown from a single colony-forming unit, or CFU.

Plates with more than 300 colonies are difficult to count while those with less than 30 colonies give statistically unreliable numbers of colonies to count.

6 0
3 years ago
What is a control value?
Inga [223]

Answer:

The value of control is a quantitative measure of the value of controlling the outcome of an uncertain variable. Decision analysis provides a means for calculating the value of both perfect and imperfect control. The former value, informally known as the value of wizardry, is an upper bound for the latter. Obtaining meaningful value-of-control measurements requires an awareness of important restrictions (concerning the nature of free will and the meaning of counterfactual statements) on the validity of this kind of analysis.

5 0
3 years ago
Read 2 more answers
The _____method is a forecasting method that looks at the conditions that lead to particular weather events
Gelneren [198K]
The ANALOG FORECASTING METHOD is known as the oldest method in the forecasting of weather. This kind of method reviews the previous weather events in order to lead to a particular weather event. Hope this helps.
4 0
2 years ago
21. All the following are differences between arteries and veins
Lubov Fominskaja [6]

Answer:

Arteries connect to capillaries and veins don't connect to capillaries

Explanation:

Actually both are connected by capillaries

8 0
3 years ago
When should you use a clustered column chart?
Gekata [30.6K]

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to compare values across a few categories

Explanation:

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