Which statement BEST describes how mutations are related to evolution?
There is not a strong relationship between mutations and evolution
Natural selection causes evolution, which causes more mutations to appear
in the DNA of the species.
Mutations are changes in DNA that produce weaker organisms that die, so
these are eliminated by evolution.
Mutations lead to new genes, which may have an advantage over the old
forms, causing the species to evolve

Mutations are changes in DNA that produce weaker organisms that die, so

these are eliminated by evolution.

Explanation:

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

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.