Why is gene regulation and expression important to all living organisms?

The process of gene expression is used by all living organisms, from the simplest prokaryote to the most complex eukaryote. And each cell in these organisms regulates gene expression to produce only the necessary proteins. Gene regulation gives the cell control over its structure and function.

Explanation:

the answer is: round.

in literature, round characters are considerably complex and experience or are subjected to unpleasant situations. as a consequence, they go through crucial sentimental and psychological development, which can cause surprise in the readers. in this case, juan's dramatic transformation is related to the adversities he meets at school.

- "the answers are a and b.  

when cullen speaks of planting while others reap, and standing "abject and mute," he is speaking about the racial injustices present in american society. as these injustices have changed over time, the american identity  has also shifted. those changes are, in turn, reflected in american literature."