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ahrayia [7]
3 years ago
6

"Into Thin Air" A Case Study in Physiology Part II Gasping for Air by Jennifer Lundmark Department of Biological Sciences Califo

rnia State University, Sacramento John, the assistant expedition leader and a seasoned alpinist, helped Tom guide Mark down the steep trail. Mark's breathing, increasingly labored with every passing moment, was loud enough to worry Emily and Pete, the expedition's final climber. "Geez, do we sound like that?" gasped Pete. "I mean, I'm out of breath, too, but he sounds horrible!" "No, we're not that bad. Remember, that's why we spent the prep month at 15,000 feet. Mark was with us, so he experienced the same physiological changes we did. This," Emily nodded at Mark, "is some sort of problem." Questions: 1. What physiological changes is Emily referring to (above) that will occur when someone lives at altitude for an extended period? 2. How are these changes advantageous?3. What is the specific physiological pathway that results in the changes described?
Biology
1 answer:
makkiz [27]3 years ago
5 0

Answer:

1. The physiological changes that will occur when someone lives at altitude for an extended period include increased production of more red blood cells.

2. The changes are advantageous as the person can survive lower altitude better and strenuous activities that interferes with breathing.

3. The specific physiological pathway that results in the changes described involves decrease in pulmonary ventilation at high altitude leading to hypoxia then hypoxemia. The body then produces more red blood cells to counteract the lower oxygen saturation in blood in high altitudes.

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mixas84 [53]

Answer:

E) 2

Explanation:

The energy transfer through the food chain is not 100% from one consumer to another, or from the producer to the primary consumer, but instead it is around 10%. This means that if a producer has the 100% of energy, as it is the one that produces it, the primary consumer will only get 10% of its energy while consuming it, while the predator of the the primary consumer will only 10% from the primary consumer, or rather only 1% from the energy of the producer. In this case we have 200 kg of plant material. The plant material represents a producer, thus it is the one with 100% of energy. A herbivore will eat the plant material, getting 10% of its energy, thus this plant material is supporting about 20 kg of herbivore. The predator of the herbivore gets only 10% from the herbivore's energy, or only 1% of the producer's energy, thus only 2 kg of predator can be supported by the initial plant material.

8 0
2 years ago
HURRRYYYY <br> Agriculture uses large amounts of water for irrigation. true or false
Sladkaya [172]
THE ANSWER IS TRUEEEEEE
6 0
3 years ago
Read 2 more answers
PLZ HELP A FELLOW HUMAN OUT!! Science question attached.
34kurt

Answer:

A liter is a cubic decimeter, which is the volume of a cube 10 centimeters × 10 centimeters × 10 centimeters (1 L ≡ 1 dm3 ≡ 1000 cm3).

Explanation:

Hence 1 L ≡ 0.001 m3 ≡ 1000 cm3, and 1 m3 (i.e. a cubic meter, which is the SI unit for volume) is exactly 1000 L.

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2 years ago
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Romashka-Z-Leto [24]

Answer:

Nitrogenous base, a Pentose sugar, and a Phosphate group.

6 0
2 years ago
Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid
Lelu [443]

Answer:

The correct answer is - solubility

Explanation:

Solubility is the nature of the material that is a chemical property of that specific solute ability to dissolved in a solvent. The ability of solute or material in a solvent or liquid is measured by the term of the maximum amount of that material dissolved in the liquid at equilibrium.

Sugar and water is a great example of solubility. When sugar is missed in the water it dissolved in water and disappear in the water here sugar is solute and water is solvent.

Thus, the correct answer is - solubility.

4 0
3 years ago
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