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zmey [24]
2 years ago
14

There are 100,000 students, staff, and faculty with an account at ASU, and when the virus was discovered, there were already 100

0 accounts infected and 2000 account recovered from the virus. We can formulate the problem as a standard SIR model. The model has a time step size of one hour. From the data of the first hours of the virus spreading through the system we know that α is 0.00001 and that it takes half a day for a computer to be recovered (the average time it takes for people to upload and execute a virus destruction program). a: What is the value of R0?
Biology
1 answer:
snow_lady [41]2 years ago
8 0

Answer:

Because the body fights the virus and when it comes back, it now identifys the virus and kills it, But we use anti bodies and etc. to fight the virus, thats why you are weak during the time. It may take some time to defeat the virus.

therefore makes it the answer

Explanation:

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Answer:

c. Physical adaptations to the environment drive the distribution of all three species in the wild.

Explanation:

Options A and B refer to competition between species. The experiment was about the colonizing ability of the three species, and not the interaction among them. So these two options are not correct.

Option D states that species A is better adapted to the upper intertidal zone than the middle or lower. But the table shows that species A is equally adapted to colonize upper and middle intertidal zone, and less adapted to colonize lower zones.

The correct option is C. When these competing species coexist, this is because of niche partitioning or niche differentiation. If there is not any differentiation between them, the dominant species displaces the weak species. In the exposed example,  the three species coexist in the middle and lower zones, which means that they probably have different niches and got adapted to living to their environments. This adaptation to different conditions is what leads to their distribution.    

In the exposed example, species A and B can live in the upper intertidal zone, where species C can not live because they can not tolerate environmental conditions. The three species can live in the middle zone, but still, A and B are more adapted to this area than C. Among A and B, B is the most adapted to living in the upper and middle zones. Species C seems to be very adapted to live in the lower intertidal zone, where species A and B can also live, but are less adapted to this area, probably due to environmental conditions or due to their vulnerability to predation. In this last area, species A is less adapted.

   

3 0
2 years ago
The most reasonable explanation for why energy conversions are necessary is because _______. Select one: a. different types of w
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<span> c. coal is too large to power cell work </span>
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If you examine a rock sample and observe fossils in it, what type of rock does the sample represent?
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<span>If you examine a rock sample and observe fossils in it, the type of rock the sample represent in C - sedimentary. Igneous rock is  a melted and cooled rock and there are no remains of any kind of fossils. Still, can be found some fossils traces in some metamorphic rocks with the lowest grade of metamorphism but those are very very rare. 
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7 0
2 years ago
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An organism has three different versions of Gene Tyx – version a, b and c. Determine the inheritance pattern of this trait. Then
Pani-rosa [81]

Answer:

The inheritance pattern of these traits will be independent. However, it will depend on the factor that which trait is dominant or recessive. It might also show incomplete dominance.

The different genotypes that organisms of this population might have are aa, ab, ac, bb, bc , cc.  If neither of the alleles are completely dominant over the other, then incomplete dominance might exist for such genes.

6 0
2 years ago
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A hungry yeast cell lands in a vat of grape juice and begins to feast on the sugars there, producing carbon dioxide and ethanol
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Answer:

The correct answer will be

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Explanation:

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