The wings of pterosaurs (1), bats (2) and birds (3) are analogous as wings, but homologous as forelimbs. Evolutionary ancestry means that structures evolved from some structure in a common ancestor; for example, the wings of bats and the arms of primates are homologous in this sense.
â¦ Broca's area is located in the left frontal lobe, in close proximity of primary motor cortex. Wernicke's Area â¦ Wernicke's area sits in the left temporal lobe, very close to the auditory cortexâthe area involved in hearing.
The four major regions of the brain are. * the brainstem. * the diencephalon. * the cerebellum. * the cerebrum. The areas within these regions that might be affected by alcohol exposure in the womb: In the brainstem: Reticular Activating System (RAS) - filters important and unimportant information from sensory input. In the diencephalon: