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Aleks [24]
3 years ago
8

Sam is exposed to a cold virus on Sunday. By Tuesday he has a cough and a congested nose. On Saturday he starts to feel a little

better, and antibodies against the cold virus begin to be detectable. What kind of response is this?
Health
1 answer:
andriy [413]3 years ago
8 0

Answer:

The correct answer is the primary response.

Explanation:

Immune response to an antigen can be categorized as a primary response or the secondary response, Primary response takes place as a result of first time exposure to the antigen. Naïve B-cell and T-cell are the cells of the primary response action. The lag phase is generally four to seven days however in some cases it can be weeks or months.

The primary response is slower in comparison or the secondary response. IgM is main and produced first in the primary response. Lymph nodes and spleen are sites for the primary response.

Thus, the correct answer is the primary response.

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aliina [53]

Answer:

B. That some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably

Explanation:

Fraternal twins are the most common type of twins in the world, about 70% of the total twin population. They may also be called biviteline or dizygotic. They are characterized by being developed from different eggs and sperm, even during the same gestation period. Fraternal twins do not share genetic information, so they do not become identical. In fact, they can be as different from each other as non-twin siblings, including even blood groups.

With this we can conclude that some fraternal twins resemble each other greatly while others look quite dissimilar highlights an interesting and often overlooked feature of fraternal-twin pairs, namely that they vary considerably

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Anastaziya [24]

Answer:

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<em>Explanation:</em>

<em>If your organs do not get enough</em><em> blood</em><em>, your organs are not receiving enough </em><em>oxygen </em><em>as blood transports oxygen to different parts of the body.</em>

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<em>hope this helps</em>

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Explanation:

I hope it can help

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Hopefully this helped. :)
Please be sure to give me a brainiest on this question I answered.
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