Answer:
They have homologous structures because they have a common ancestor
Explanation:
vestigial structures can be considered evidence for evolution, the process by which beneficial heritable traits arise in populations over an extended period of time.
In 1832, as the Beagle was exploring the Bahia Blanca along the coast of Argentina, Darwin discovered the bones of fossil mammals at two localities. In a place where armadillosabounded, he was especially struck by what looked liked the outer shell of an extinct form of armadillo.
It’s the cerebral cortex that is damaged and that damage and the cerebral cortex is located in the frontal lobe.