The formation of a mirage is shown in the model here. To the observer, the image appears to be coming from the straight line, when in fact it is coming from an angled source. What BEST explains the observer and the mirage?

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:

heats surface water up

this would be about 43%