Random Analogies
"High school counselors should stop being shills for Sallie Mae. They should tell students that a student loan is like borrowing from the mafia-you have to pay it back even if your degree is worth as much as an expired 2-for-1 coupon at Taco Bell. In 4 years there aren't going to be too many jobs but there will be plenty of collection agencies going after student loan debt."
"Uracil is like thymine - but without the methyl group (CH3-)at the top."
This is a crude analogy but it may help some understand what is occurring when plants fix carbon. With water condensation, water is changing from a gaseous phase to a solid phase. Then if it freezes, it's final form is solid. When carbon is fixed, carbon dioxide is being transformed from a gaseous form to a sold form through the energy derived from photosynthesis. The fixation of carbon is both a physical and chemical change. The gas CO2 is converted into a sugar, a solid

