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wlad13 [49]
3 years ago
14

As exercise levels increase, which of the following physiological changes occurs in the respiratory system?

Biology
2 answers:
marta [7]3 years ago
7 0
The cardiorespiratory system gets stronger
almond37 [142]3 years ago
7 0

The lungs expand in size.



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We can confirm that a person with very toned muscles likely has tightly packed myofibrils.

<h3>What are myofibrils?</h3>

These fibers are the protein filaments that cause contractions in the structure of the muscle. Weight training tones muscles by increasing the number of myofibrils in a sarcomere, thus increasing its capacity to produce force.

Therefore, we can confirm that a person with very toned muscles likely has tightly packed myofibrils.

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The process in question in the diagram is called the central dogma of life which describes the flow of genetic information from DNA to RNA to Protein. The three processes involved are:

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DNA replication is the process by which DNA makes a copy of itself. Replication of DNA is semi-conservative. this means that each new helix is a combination of an old (parent) strands and a new (daughter strand). The parental strand is used as a template to generate a complementary daughter strand.

Transcription:

Transcription is the formation of an RNA transcript of the DNA template. This process yields a mRNA that is further used as a code to manufacture proteins in the process of translation.

Translation:

Translation decodes the mRNA formed in transcription to generate proteins with specific amino acid sequence.  

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