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Westkost [7]
3 years ago
15

Which class of fire extinguisher is appreciate for a fire involving a flammable liquid

Biology
1 answer:
timurjin [86]3 years ago
3 0

Fire extinguishers with a CLASS B rating is appreciated for a fire involving a flammable liquid. Class B fire extinguishers are good when liquids, oil, gasoline, kerosene, or paint has ignited into flames. The Class B fire extinguishers have two commonly used chemicals that destroy the fire, Monoammonium phosphate and sodium bicarbonate. What the Monoammonium phosphate  does is smothers the fire, while the sodium bicarbonate makes a chemical reaction that extinguishes the fire.

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You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the c
kykrilka [37]

Answer:

There are no options in this question but generally a sample of DNA can be increased;

By using Polymerase Chain Reaction (PCR) technique.

Explanation:

This question describes the application of making molecular biology to solving a crime problem; a branch called forensics. In this case where an insufficient small amount of DNA sample was recovered from the blood in a crime scene, the polymerase chain reaction technique, commonly known as PCR can be used to increase the DNA sample.

In the 1980's, a molecular technique used to amplify part of a template DNA strand to produce several copies of it, was invented by Kary Mullis and his colleagues. This amplification refers to the numerical increase in the number of DNA sequence.

6 0
3 years ago
Which is not a combination of innate and learned behavior?
Leni [432]
It is not a combination of innate and learned behavior, because the the person is naturally the way he/she is. Human behavior can be common, unusual, acceptable, or unacceptable. Humans evaluate the acceptability of behavior using social norms.
4 0
3 years ago
Please help this is important!
icang [17]

Answer:

25% chance for purple flowers 75% chance for white flowers.

Explanation: The big letter is the dominant gene and that means that it will be what ever the dominant gene says. (unless both are recessive like with the "ww" purple flowers)

8 0
3 years ago
The map illustrates the greenhouse gas emissions by country in 2000. What statement correlates the map with the ecological footp
OleMash [197]

Answer:

C) is correct

Explanation:

The United States has a smaller population than China, but has a higher per capita greenhouse gas emission, resulting in a larger carbon footprint on a national level.

5 0
3 years ago
In order for this code to represent a piece of DNA, which base must be replaced by thymine?
HACTEHA [7]
I guess you forgot to add the picture or so.
Based on the Complementarity of the 4 nucleotides, The thymine must always be placed in  front of the Adenine, and the Cytosine must always be placed in front of the Guanine.
Any change in this rule causes the deformation of the DNA, and can sometimes cause fatal diseases like the melanoma (skin cancer) etc...

Hope this Helps! :)
7 0
3 years ago
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