Answer: Cell differentiation is how generic embryonic cells become specialized cells. This occurs through a process called gene expression. Gene expression occurs because of certain signals in your body, both inside and outside of your cells. Cell differentiation occurs during multiple stages of development.
You can be infected with a virus & not even know it & that is true
<span>D. Gravity is the force of attraction between two objects and is dependent upon the mass of the objects and the distance between the objects.</span>
