Question

how does the presence of introns is reminiscent of antiquity how the process of splicing represents the dominance of RNA -world??

Answer 1

In general: Nasal breathing is healthierthan mouth breathing for several reasons. ... Exhaling through the nose, which is smaller than the mouth, creates greater air pressure andtherefore a slower exhalation. This gives the lungs extra time to extract agreater amount of oxygen
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