You are participating in a fresh water fishing tournament with the goal of catching the heaviest fish. You are in the middle of the river when you finally get your catch; unfortunately, you realize that you left the spring scales in your car. All you have in the boat are the paddles, your 16 Oz coffee mug, some rope, measuring tape, and a plastic bag. Required:
Estimate the mass of the fish (in kilograms) using these items.

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:

a sonic boom is a loud boom that breaks the sound barrier

explanation:

snell's law

refractve index = sin incidence / sin refraction