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An unwanted influence on a sample refers to any factor that can introduce bias or error into the sample, potentially affecting the accuracy and reliability of the results. This could include environmental factors, human error, contamination, or systematic errors in measurement techniques. Minimizing unwanted influences is critical in ensuring the validity of study findings.
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Why is it neccessaryo use aseptic techniques when a tube with nutrients broth is inoculated with a soil sample?
Using aseptic techniques prevents contamination by unwanted microorganisms during inoculation, ensuring that only the desired microorganisms from the soil sample grow in the nutrient broth. This helps to accurately study the characteristics and behavior of the microbes present in the soil sample without interference from other organisms.
Why must the inoculating loop be cooled before touching a culture?
To avoid killing the test subjects before the test can begin.
What is another word for specimen?
Sample, example.
What is a sterile culture?
A sterile culture is a culture that is free from any living microorganisms. It is typically achieved through the use of sterile laboratory techniques and equipment to prevent contamination. Sterile cultures are important in microbiology and biotechnology for studying specific organisms or processes without interference from unwanted microbes.
When DNA profiling is carried out the second DNA sample the one not collected at the crime scene is called the?
mitochondrial sample
What things might influence the prediction while taking a sample?
Some factors that might influence the prediction while taking a sample include the size of the sample, the representativeness of the sample compared to the population, the variability within the sample, and the method of sampling used. These factors can impact the accuracy and reliability of the prediction based on the sample.
Which of the following is not a way to influence poll results?
using a random sample
What does it mean to say that the sample variance provides an unbiased estimate of the population variance?
It means you can take a measure of the variance of the sample and expect that result to be consistent for the entire population, and the sample is a valid representation for/of the population and does not influence that measure of the population.
When measuring dissolved oxygen in an aerator why is copper sulfate added to the sample?
Copper sulfate is added to a sample to remove any interfering substances, such as hydrogen sulfide, which may affect the accuracy of the dissolved oxygen measurement. It helps to neutralize these unwanted compounds, allowing for a more reliable reading of the dissolved oxygen levels in the sample.
Why is the sample needed to be heated over a Bunsen burner before heating in a muffle furnace?
Heating the sample over a Bunsen burner helps remove any moisture or volatile impurities that may be present on the surface of the sample. This preheating step ensures that the sample is clean and free of contaminants before being subjected to high temperatures in the muffle furnace, helping to prevent unwanted reactions or interference with the analysis.
Why is it neccessaryo use aseptic techniques when a tube with nutrients broth is inoculated with a soil sample?
Using aseptic techniques prevents contamination by unwanted microorganisms during inoculation, ensuring that only the desired microorganisms from the soil sample grow in the nutrient broth. This helps to accurately study the characteristics and behavior of the microbes present in the soil sample without interference from other organisms.
What does the root word soma mean?
The root soma means body for ex-sample Psychomatic:Of or concerned with the influence of the mind on the body
Can british police make random breath tests?
The UK Police can request a breath, blood or urine test if they have reason to believe that you have been operating or are in charge of a vehicle whilst under the influence. In these circumstances, it is a criminal offence to refuse to provide a sample. The offence of refusing the provide a sample carries the same disposal as the offence of driving under the influence.
What part of speech is the word unwanted?
The word "unwanted" is an adjective. It describes something that is not desired or not wanted.
Does anyone have an unwanted hamster?
If the hamster are unwanted, nobody wants it.
When was Unwanted Soldiers created?
Unwanted Soldiers was created in 1999.
What is unwanted sound is called?
Unwanted sound is commonly referred to as noise. Noise can be any sound that is unwanted, disruptive, or irritating.
