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Ira Lisetskai [31]
3 years ago
8

When you forcefully exhale your entire expiratory reserve volume, any air remaining in your lungs is called the residual volume

(RV). why is it impossible to further exhale the RV (that is, where is this air volume trapped, and why is it trapped).
Biology
1 answer:
mars1129 [50]3 years ago
3 0

Answer:

Keeping the alveoli open and for constant gas exchange.

Explanation:

After maximum expiration of the air in the lungs, there remains still some air called the residual volume. This is because the alveoli, the smallest sacs in the lungs which take part in the exchange of gases between the lungs and the bloodstream, need to stay inflated and open. This also ensures that the gas exchange is continuous between breaths which is really important. I hope this answer helps.

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A population of squirrels living in a habitat covering 150 hectares is at 80% of the carrying capacity of 1,500. Assuming that t
Shkiper50 [21]
1) To calculate the population density you first need to know how many <span>squirrels form that population.
To calculate the number of</span><span> squirrels:
1500</span> squirrels is the capacity, so it's equivalent to 100%
So how much squirrels are present in 80% of the area:
1500----100 %
x----------80 %
x= 1200 <span>squirrels
</span> 
2)Population Density equals the number of squirrels divided by the land area
In the first part was calculated the number of squirrels and the exercise gives us the area in hectares so the only thing left to do is divide them.
(since this exercise doesn't specify that the area needs to be in a certain measurement we can use hectares)
 Population Density = 1200/ 150
<span>The population density of the squirrels is 8 per hectare</span>
7 0
3 years ago
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Snowcat [4.5K]
So here are the answers that will complete the given statements above.
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3 years ago
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Answer:

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Explanation:

5 0
2 years ago
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State the level of organization of euglena onion bulb and blood
saw5 [17]

Answer:

The correct answer is -

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Explanation:

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6 0
3 years ago
Some students were studying antibodies in the body. In determining their composition, they were told they are polypeptides forme
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Answer:

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