In __________,there is a progressive increase in size and complexity of the outermost part of the cerebrum,called the cerebral cortex.
A)fishes
B)amphibians
C)reptiles
D)birds
E)mammals

Question

Quizplus · Accepted Answer

The progressive increase in size and complexity of the outermost part of the cerebrum, called the cerebral cortex, is a hallmark of the evolution of mammals. While the cerebral cortex is present in all classes of vertebrates, it is most highly developed in mammals, which have a six-layered cortex with distinct regions involved in higher cognitive functions. Fishes and amphibians have relatively small and less complex cerebra, while birds and reptiles have larger cerebra than fishes and amphibians, but their cerebral cortex is less developed than that of mammals.

In __________,There Is a Progressive Increase in Size and Complexity