Which reaction actually uses nadph and atp from the light reactions?

The light-independent reactions take the products of light-dependent reactions (ATP and NADPH)  and use it for further chemical processes.

The light-independent reactions, or dark reactions are the second stage of photosynthesis that occurs after light-dependent reaction. The light-independent reactions are chemical reactions that convert carbon dioxide and other compounds into glucose without presence of light.

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.

the tricuspid valve is present between right atrium and right ventricle