"Ewww!" says TJ when he sees an actual human brain on display at the science museum, "I didn't realize how convoluted and wrinkly it would be." Because he can only see the outer layer of the brain, TJ is actually describing just the
A) cerebral cortex.
B) tectum.
C) limbic system.
D) basil ganglia.
Answer: A
Rationale: The cerebral cortex is the convoluted, wrinkled outer layer of the brain that is involved in multiple higher functions, such as thought, language, and personality. It is a highly advanced, complex structure that has increased dramatically in size as the primate brain has evolved.
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