At track practice, a boy runs 10 m at 45° north of west, then 20 m at 12° south of west. What is his resultant displacement? Give the magnitude,
units, angle, and direction words.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  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  cell  functions.

explanation:

e/c, where e is its total energy

answer///terminator or twilight zone;