Chemistry

Recently Asked Questions In Chemistry

Question
QUESTION 6
› the space below, give a detailed description of Koch's postulates. Why is this concept important in medical science?
Answer

Koch's postulates are a set of four criteria that establish a causal relationship between a microbe and a disease. The postulates state that the microbe must be present in all cases of the disease, it must be isolated and grown in pure culture, the pure culture must cause the disease when inoculated into a healthy host, and the same microbe must be re-isolated from the diseased host. This concept is important in medical science because it provides a framework for identifying the cause of infectious diseases and developing effective treatments. By following Koch's postulates, scientists can determine whether a microbe is responsible for a particular disease and develop targeted therapies to combat it. Additionally, the postulates help to ensure that the causative agent of a disease is accurately identified, which is critical for preventing the spread of infectious diseases and protecting public health.

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Koch's postulates were developed by German physician and microbiologist Robert Koch in the late 1800s. They were initially used to identify...
Question
Id War I World War 1 - Br
X
+
/world-war-l/read-and-respond/Passignment=11867770
Read & Respond
Use the text below to answer the question.
Up until 1917, the United States was neutral in the war. This meant that they hadn't taken a
side and were not fighting. In fact, the Americans actually had been making a lot of money
selling weapons to both sides. In 1917, though, the German U-boats sank several American
ships in hopes of cutting off supplies to the British and French. This decision went very
wrong for the Germans. The United States declared war on Germany in April 1917. With
support from American troops and supplies, the tide began to turn, and the Allied Powers
began to win the war.
Because Germany sank American ships in 1917,
A
the United States remained neutral in the war.
B
the Americans made a lot of money selling weapons.
the United States declared war on Germany.
D
the Germans received American troops and supplies.
BACK
MacBook Pro
Answer

C The United States declared war on Germany in April 1917.

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The United States was neutral in the war until 1917, when German U-boats sank several American ships. This prompted the United States to declare war on...
Question
Sa
lloje
strukturore
mutacionesh
кеті ?
kromozomite
Answer

Kromozomet janë strukturat që përmbajnë mutacionet.

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Kromozomet janë strukturat që përmbajnë mutacionet, të cilat janë n...
Question
What groups had been core supporters of the Democratic-Republicans?
Answer

Farmers, small business owners, and the working class.

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The Democratic-Republicans were a political party in the United States during the late 18th and early 19th centuries. They were the main opposition to...
Question
Where in a research paper does the Works Cited list appear?
OA before the title
OB in footnotes
OC after the introduction
OD at the end
Answer

OD at the end

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The Works Cited list appears at the end of a research paper, after the conclusion. It is a list of all the sources used in the paper...
Question
66
La rolazione tra l'interesse reale •
l'interesse nominale è definita dal:
Scegli l'opzione corretta
Effetto Fiche
Effotto Hall
Effotto Venturi
Effetto
Corloll
Answer

Effetto Corloll

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The correct answer is Effetto Corloll. This is because the Corloll effect is the relationship between the real interest rate and the nominal...
Question
Who was the first absolute monarch of Russia?
A. Ivan IV
C. Feodor I
B. Vasily III
D. Dmitry I
Answer

A. Ivan IV

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Ivan IV, also known as Ivan the Terrible, was the first absolute monarch of Russia. He reigned from 1533 to 1584...
Question
Question 4 of 10
Why are antibiotics unhelpful for treating the common cold?
O A. Antibiotics cannot treat disease.
• B. Colds are caused by antibiotics.
• c. Colds are caused by bacteria.
O D. Antibiotics attack only bacteria.
Answer

C. Colds are caused by bacteria.

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Antibiotics are not effective for treating the common cold because colds are caused by viruses, not bacteria. Antibiotics are only effective against bacterial...
Question
Question 5м
1 points)
(MC)hat was the justification for the US acquisition of the Virgin Islands?
fo push Spain out of the Western Hemisphere
to prevent Germany from gaining a submarine base
to allow US ships to refuel on their way across the Pacific
to provide U.S. businesses with a stable political climate
Answer

To push Spain out of the Western Hemisphere.

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The primary justification for the US acquisition of the Virgin Islands was to push Spain out of the Western Hemisphere. This was done in order to prevent Spain from...
Question
y and how do citizens participate?
Answer

Citizens can participate by voting, attending public meetings, contacting elected officials, and engaging in advocacy.

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Citizens can participate in the democratic process in a variety of ways. These include voting in elections, attending public meetings, contacting elected officials, and...
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