What was Darwin‘s role while he was a board the beagle on the voyage to South American

Hello! Your answer is shown below,

Darwin’s presence on board the Beagle was supplementary if not ornamental to the official aims of the second voyage, which were to provide accurate charts for naval, commercial, and colonial navigation and to stake a British strategic claim around the shores of South America following the breakup of the Spanish and Portuguese empires.

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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.