Well, It cannot be A. as the trachea is the windpipe, so its not separated.
I think your answer is definitely C. because that says exactly what the nose does so it makes it true and the other ones are false.
Hope I helped :)
In this case, the experiment suggests that the dose-response relationship is linear.
<h3>What is a linear effect?</h3>
A linear effect occurs when the independent and dependent variables are proportionally related during an experiment.
In this case, the doses are linearly (proportionally) related to the response of the individuals (rats).
The linear effects are very common in experimental procedures and nature as well.
Learn more about linear effects here:
brainly.com/question/6691346
The answer is oxygenated.
