5. limb bones within unrelated animals that have the same basic structures are considered a. embryological. b. analogous structures. c. homologous structures. d. vestigial structures.

Limb bones within unrelated animals that have the same basic structures are considered C. homologous structures.

Homologous structures is a example of an organ or bone in different animals.

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The gens present in the dna in the nucleus of the cell in the body