Where different temperature limitations of individual components are applied to a single circuit, the principle of the ? is often used to determine the temperature rating of the entire circuit.

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:

this is poiselle's equation from fluid mechanic in physics. mech eng

mass and volume are the answers you are looking for

a is the best answer your welcome