What is an adaptation

a change or the process of change by which an organism or species becomes better suited to its environment

Explanation:

ad·ap·ta·tion

/ˌadapˈtāSH(ə)n/

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noun

the action or process of adapting or being adapted.

"the adaptation of teaching strategy to meet students' needs

"filming her adaptation of a beloved children's book

Explanation:

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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.