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15. Some scientists use molecular evidence to study
evolution. One type of molecular evidence is
the amino acid sequence of particular proteins in
various species.
Which of the following best describes what the
study of these sequences reveals about the species?
A. The more similar the sequences are, the faster
the species will coevolve.
B. The more similar the sequences are, the more
closely related the species are.
C. The longer the sequences are, the earlier the
species evolved in geologic history,
D. The longer the sequences are, the more
adapted the species are to their environments.