In cell division, the cell that is dividing is called the "parent" cell. Cells regulate their division by communicating with each other using chemical signals from special proteins called cyclins. These signals act like switches to tell cells when to start dividing and later when to stop dividing.
The number of chromosomes in a sex cell is half the number of chromosomes in a body cell. Think of it this way: 1 egg (women sex cell) combine with 1 sperm (male sex cell) to make 1 whole cell.
When jacob greeted stephanie at the beach, he reached out with the volar surface of his hand to grasp the palmar surface of her hand for a handshake. As the anterior aspect of their bodies faced each other, jacob noticed that the hair located on the most superior part of Stephanie's head appeared to be a different color than he remembered.
The volar surface is associated with the palm or the sole, the palmer surface is the palm or gripping part of the hand, the anterior aspect of the body is the front part of the body while the most superior part of the human body is the head.