How long does it take to charge a nissan leaf?

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:

im srry but ur wrong the answer is d a smooth rock, some red dirt, and an empty bird's nest.

54 degrees incident angle = reflected angle

angle is from normal turned to line of ray