You are discussing wally's case with the other nurses when one of them says it does not make any sense. "it's called adrenal hypertrophy," she says. "that means the adrenal is bigger than normal! so why are they giving him cortisol? his adrenal should be making more cortisol if it's bigger than normal."

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.