Darius is sleeping right through the sounds of fire engine and police car sirens right outside his window. It is MOST likely that Darius is .
experiencing an episode of sleep apnea in Stage 3
sleep in REM
sleep in a drug-induced hypnagogic state

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.