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OleMash [197]
3 years ago
14

What is the typical time frame for creating a vaccine? (Before covi)

Biology
1 answer:
DaniilM [7]3 years ago
3 0

Answer:

B. 10 or more years

Explanation:

hope this helps :)

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Suffering the impact of swarms of locusts, a farmer uses an airplane to spray an insecticide over 1,500 acres of his corn field.
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Answer:

C. a chemical treatment.

Explanation:

In this case we would be talking about a chemical treatment, since the application of an artificial compound is made, and it is not clarified that it was "ecofriendly".

On the other hand, the question clarifies that the farmer is suffering from the plague. This indicates that he is not preventing it (Integrated pest management), he is treating it.

Finally, it should not be considered as an agronomic treatment, since no real modifications are being made to the way the field is managed.

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The transport of molecules of a particular solute from inside an animal cell across the cell membrane to the extracellular fluid
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Answer:

the concentration of the solute is lower inside the cell than outside it

Explanation:

This question depicts the process of ACTIVE TRANSPORT, which is the movement of a substance against concentration gradient, hence, requires energy input (ATP) to occur. In this case, transporting a solute from inside an animal cell to the extracellular fluid across the cell membrane always requires energy.

This is because the concentration of solute inside the cell is much lower than that of the extracellular fluid, hence, to move the solutes against this concentration gradient (low to high), energy in form of ATP is required.

6 0
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No matter what happens to us, we
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c

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Margarita [4]

Answer:

C

Explanation:

Precipitation is basically the weather, the people that come to the park would want a clean park which means that that would increase, and temperature is based on weather.

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