Respuesta :
Species A is more closely related to Species B because the have the most similarity in their nucleotide sequences.
What are nucleotide sequences?
Nucleotide sequences are long sequences of nucleic acids linked together by phosphodiester bonds.
Nucleotide sequences represents the DNA of organisms.
The more related organisms are, the more similar will be their nucleotide sequences.
Therefore, species A is more closely related to species B because the have the most similarity in their nucleotide sequences.
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