<span>Answer:During expiration, the volume of the thorax decreases as the diaphragm rises/relaxes.
In expiration the air gets out of the lungs and it's not occupying as much space in the lungs, so the volume of the thorax will decrease. Meanwhile, the diaphragm can go to his relaxed stage and move </span><span><span>superiorly</span>
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We can confirm that a segment of DNA that codes for RNA and can vary in length from a few hundred to as many as two million base pairs in length best defines a gene.
<h3>What is a gene?</h3>
To expand on the definition given, we can say that a gene is, as mentioned, a series of base pairs known as nucleotides that will code for RNA. The RNA in question is messenger RNA that will later become a protein. Through this process, genes code for every aspect of an organism and will determine its morphology and all other biological aspects.
Therefore, we can confirm that a segment of DNA that codes for RNA and can vary in length from a few hundred to as many as two million base pairs in length best defines a gene.
To learn more about genes visit:
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Coral reefs form in warm, shallow waters.
<span>In general, a species' realized niche will be smaller than its fundamental niche due to interactions with other organisms in the community.
Hope that helped you.
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