The cerebral cortex is
a. chemicals produced by the endocrine system that control growth, sexual development, reproduction, metabolism, mood, and some behavior
b. how much of the variability in a characteristic in a population is because of genetics
c. part of the pns that links the central nervous system to the smooth involuntary muscles and organs of the body
d. wrinkled outer covering of the brain that allows for more complex forms of learning, memory, and language

The cerebral cortex is the outer covering over the hemispheres of the brain. It is typically 2 – 3 mm thick. The cortical region of the cerebral cortex involves the sensory input or production of the limb or eye movements. It also includes the front lobes which has more complex functions. It includes memory, language, abstraction, creativity, judgment, emotion and attention. The answer is letter D. it is the wrinkled outer covering of the brain that allows for more complex forms of learning, memory and language.