Modern scientists have observed that genetic changes happen over time in all natural populations. Therefore, by comparing amino acid sequences, scientists can determine how similar one species is to another. The table below compares amino acids in a number of species. Based on the information in the table, which animal is most closely related to humans? (SC.912.L.16.3)

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chicken
gorilla
lamprey
rhesus monkey

The animal most closely related to humans based on the information in the table is the gorilla. This is because the gorilla has the highest number of similar amino acid sequences to humans compared to the other animals listed.