McGraw-Hill Online Learning Center Test

McGraw-Hill Online Learning Center Test


1. Review the image and answer the following questions.

What general trend do we see in the evolution of the brain from the shark to humans, as depicted here?

A. increasing importance of the medulla oblongata
B. decreasing size of the cerebral hemispheres
C. increasing dominance and enlargement of the cerebrum
D. increasing dominance of the cerebellum


2. Why are birds shown here on a diverging pathway?

A. The bird brain continually decreases in size while the brains of other animals increase in size.
B. The bird brain is composed of different subunits than are the others depicted.
C. because birds evolved from reptiles on a separate lineage from mammals
D. None of these is correct.
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