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dedylja [7]
2 years ago
5

Why doesn't one case of influenza infection confer lifelong immunity on the host?

Social Studies
1 answer:
denis-greek [22]2 years ago
7 0

The reason why one case of influenza does not confer lifelong immunity is that the virus tends to mutate overtime which makes it unrecognizable to the immune system.

<h3>Why is it difficult to get immunity to influenza?</h3>

Influenza is caused by a virus which tends to mutate overtime in order to stay ahead of medical technology.

As a result, this mutation makes the original virus unrecognizable to the immune system which would then be unable to fight it.

Find out more on natural immunity at brainly.com/question/21480961

#SPJ1

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lora16 [44]
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3 0
4 years ago
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How and why did railroad<br> companies convince farmers<br> to purchase land in West<br> Texas?
Sav [38]

Answer:

To increase the value of the land.

Explanation:

Existence of Agricultural businesses in  a certain territory tend be followed by an influx of migration toward that territory since Agricultures provide the basic needs that humans need to live. As more populations arrive in that area, the value of the land will increase.

Railroad companies convinced farmers to purchase it by promising that they will built their rails there in order to make it easy for the farmers to distribute their products. If the population in that area increased, the railroad companies will also be benefited since increased population will provide them with more customers.

6 0
3 years ago
Determine whether this argument is using deductive or inductive reasoning. Then evaluate the argument as either valid/invalid or
lianna [129]

Answer:

Inductive, weak

Explanation:

An inductive reasoning is the opposite of deductive reasoning. Inductive reasoning applies knowledge of past experiences and observations to form conclusions. The premise and conclusion goes "if this happened now... this must then happen". This type of reasoning moves from specific to general as opposed to deductive reasoning that moves from general to specific.

The argument in our question is also a fallacy. A fallacy is a faulty logic or weak argument. The argument is a fallacy of faulty generalization, the typical "jumping into conclusion".

4 0
3 years ago
ASAP PLSS HELP ME thank you oh another question <br> 27 amendments and why are they important?
Serga [27]

Answer:

Explanation:

The Constitution makers felt that it has to be in accordance with people's aspirations and changes in society. They did not see it as a sacred, static and unalterable law. So, they made provisions to incorporate changes from time to time. These changes are called constitutional amendments.

4 0
3 years ago
What did Hayes hope would happen when southern whites took back control of the southern governments
DanielleElmas [232]

Answer:

The Compromise of 1876 effectively ended the Reconstruction era. Southern Democrats' promises to protect civil and political rights of blacks were not kept, and the end of federal interference in southern affairs led to widespread disenfranchisement of blacks voters.

Explanation:

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6 0
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