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stich3 [128]
3 years ago
14

The arterioles (small arteries) leading to an organ, constrict in order to decrease flow to the organ. To shut down an organ, bl

ood flow is reduced naturally to 2.80% of its original value. By what factor did the radii of the arterioles constrict? Penguins do this when they stand on ice to reduce the blood flow to their feet.
Biology
1 answer:
Elodia [21]3 years ago
5 0

Answer:

The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells.

Explanation:

When the vessels suffer vasoconstriction, the blood supply is decreased and in this way the heat of the body is maintained. The way this happens is because the blood can no longer reach the surface and therefore decreases outward heat radiation.  The main factor that causes vasoconstriction is the high concentration calcium inside muscle cells. There are several factors that cause vasoconstriction, internal or external. Environment is one of the external factors, and what happens to the penguins' feet is an example for it, since they are trying to preserve body heat to survive.

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dybincka [34]

Answer:

Explanation:

Although yeast is a one-celled fungus, most fungi are multicellular organisms. Fungi are eukaryotes, meaning they have a cell nucleus. Like plants, fungi have cell walls and do not move on their own. Unlike plants, however, fungi cannot produce their own food because they do not have chloroplasts.

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2 years ago
a typical eukaryotic cell has enough available atp to meet its needs for about 30 seconds. what is likely to happen to an indivi
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Eukaryotic cells rely on the molecular energy of ATP to sustain all of the reactions necessary to maintain life, in the absence of ATP, these reactions would come to a halt, and the cell would inevitably die.

ATP is a molecular compound that provides the energy needed by most cells to survive. ATP represents Adenosine triphosphate, which is an organic compound that provides energy to drive the essential metabolic reactions of living cells, such as:

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In the situation in which a cell was to run out of ATP, these reactions would stop, given that they require ATP to function. This means that the cell would not be able to send or receive nerve signals, absorb the nutrients it needs, or even create necessary compounds such as proteins. The stoppage of these functions would lead to the death of the cell.

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brainly.com/question/836188?referrer=searchResults

8 0
2 years ago
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Answer:

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8 0
3 years ago
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A common symptom that would alert the nurse that a preterm infant is developing respiratory distress syndrome is:_________
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In an effort to maintain FRC and avoid alveolar atelectasis, the glottis suddenly closes on expiration, causing a grunting sound. Achieving and maintaining physiologic FRC is crucial in the management of respiratory illnesses with poor compliance, such as RDS or TTN, because lung compliance is worse at very low or very high FRC.

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1 year ago
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worty [1.4K]

Answer:

True

Explanation:

5 0
3 years ago
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