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Daniel [21]
3 years ago
8

Which of the disorders below is characterized by destruction of the walls of the alveoli producing abnormally large air spaces t

hat remain filled with air during exhalation? A. emphysema B. pneumonia C. tuberculosis D. coryza
Biology
1 answer:
Nuetrik [128]3 years ago
3 0

Answer:

The correct answer is option A. emphysema.

Explanation:

Emphysema is a lung disease that causes shortness of breath. It is caused due to damage in alveoli is damage. These alveoli are the air sacs that help in gaseous exchange in the bloodstream and lungs.

Ruptured or weaken walls of the alveoli of the lungs produce air space that stays filled with air during exhalation, it is an abnormal condition that causes shortness of breath.

Thus, the correct answer is option A. emphysema.

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For which of the following materials could you use the strategy of making inferences will reading
KIM [24]

D) all of above

Explanation:

Essays, fiction and biographies can be used as strategy and source of making inferences while reading.

Journals and publications are also good strategical resources during reading.

  • An essay is usually an analytic or descriptive composition about a subject.
  • A fiction is work that is based on imagination and it is not true most of the times.
  • A biography is an account of one's life history.

All of these can be cited a source while researching and reading.

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7 0
3 years ago
Why is a nutrient cycle on earth called closed system
anastassius [24]

Answer:

<em>The nutrient cycle </em><em>is nature's recycling system. All forms of recycling have feedback loops that use energy in the process of putting material resources back into use. </em><em>Recycling</em><em> in ecology is regulated to a large extent during the process of decomposition.</em><em> Ecosystems employ biodiversity</em><em> in the food webs that recycle natural materials, such as mineral nutrients, which includes water. </em><em>Recycling in natural systems</em><em> is one of the many ecosystem services that sustain and contribute to the </em><em>well-being</em><em> of human societies.</em>

<h2>Explanation:</h2>

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4 0
3 years ago
What is the first thing that happens in photosynthesis?
Lerok [7]
<span>light energy is captured</span>
4 0
3 years ago
Life as we know it depends on the genetic code: a set of codons, each made up of three bases in a DNA sequence and corresponding
-BARSIC- [3]

Answer:

5 bases

Explanation:

If there are 17 amino acids and only 2 bases that can be combined in order to make a codon then:

for 4 bases 4^{2} is 16 and it is not enough combination for all 17 amino acids

for 5 bases 5^{2} is 25 combinations (meaning that more than one codon could code for the same amino acid).

3 0
3 years ago
Read 2 more answers
A simplified model of protein synthesis is shown here: How might this model be revised to show a more accurate depiction of prot
Nady [450]

Answer:

<em>The correct options are:</em>

<em>Prior to process 1, DNA should copy itself to allow the cell to divide.</em>

<em>Between processes 1 and 2, the mRNA must be modified before leaving the  nucleus.</em>

Explanation:

For eukaryotes, the mRNA is made in the nucleus from the DNA. This process in known as transcription. The process of making proteins from the mRNA takes place in the ribososmes of the cytoplasm. This process is known as translation. The mRNA has to be modified before it is transported for translation. Otherwise, the mRNA will be degraded by the enzymes of the nucleus.

7 0
3 years ago
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