Whether oxygen diffuses from the alveoli into the blood or not is dependent upon? 1- partial pressure of nitrogen in lungs
2-partial pressure of O2 in lungs
3- partial pressure of 02 in lungs and the blood
4-partial pressure of all gases in the atmosphere and the blood
5-Partial pressure of O2 and CO2 in blood
6- partial pressure of nitrogen in the atmosphere and blood

it creates acid rain

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.