The rungs or steps of dna are made up of which are attached to the sides or railings of dna, which are made up of

The steps are made of nitrogenous bases; deoxyribose sugars linked with phosphates.

cramming before a final is bad because it makes a student's stress level higher. students who embrace cramming to get through a final exam week find themselves struggling to perform consistently, once the brain adjusts to prolonged sleep deprivation.

the form of energy changes and the total energy increases0l