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Mrac [35]
4 years ago
15

Emphysema causes alveolar dilation and destruction of alveolar walls which causes an increase in residual volume with air that c

annot be exhaled. Assuming that an individual's TLC does not change, explain why a person with developing emphysema is not short of breath while resting, but becomes short of breath after climbing a flight of stairs.
Biology
1 answer:
kykrilka [37]4 years ago
4 0

Answer:

Because during climbing a flight of stairs our body requires more energy and an increased amount of Carbon Dioxide is produced. to compensate both of these our medulla orders our lungs to breathe faster. In Emphysema extensive lining of alveoli become damaged and hence it can not full fill the demand of the body. hence patient of emphysema becomes short of breath.

Explanation:

Emphysema:

It is the disease in which the patient air sacs becomes damaged due to the thinning of the walls of alveoli. The patient feels short of breath during a tough situation, exercise or during pressure. All those activities which require energy in excessive amount can cause shortness of breath to the emphysema patient.

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The companies fracture the surrounding earth when drilling for natural gas in order to increase the amount of gas extracted.

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4 0
2 years ago
A cell that has relatively few energy needs would probably have a relatively small number of __________.
cestrela7 [59]
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6 0
3 years ago
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adaptations are compromises

Explanation:

The pleiotropic gene involved in sickle-cell anemia is an example of heterozygous advantage. This means that the heterozygous genotype is favourale over other two genotypes (recessive homozygous and dominant homozygous). Eventhough it has harmful effect (sickle cell disease carrier) heterozygous genotype enables resistance to infection (malaria) and that is why this genotype is still favourable by natural selection. This phenomenon is evidence of compromise between harmful ad benefit.

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3 years ago
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A cell containing 5% salt is placed into a glass of water with 20% salt. Which direction will water flow, assuming salt is too b
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Answer:

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