Hi There!
<span>The two men travel a thousand miles at a time before they stop for the night.
Can you please mark me brainliest? </span>
Answer:
Subject: Missing Assignment
Good afternoon, Mr. X(replace with your teacher's name)
I am writing to you today in regards to my missing assignment. I understand the due date was several weeks ago, but I now have it completed and ready to turn in. I understand this assignment is very late, due to no one's fault but my own, but is there anyway I could still turn it in? I sincerely apologize for causing you the inconvenience, as you took care of your part in this process.
Thanks, (Your Name)
Cell differentiation<span> is how generic embryonic </span>cells<span> become specialized </span>cells. Thisoccurs<span> through a process called gene expression. Gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a </span>cell<span> functions.</span>