cephalization refers to the trend for animals with more complex body types to
A. concentrate nervous tissue in the anterior (head) end of the animal.
B. become bilaterally symmetrical.
C. develop a brain with clear divisions between "gray" and "white" matter.
D. develop a segmental organization to the nervous system.
E. concentrate sensory organs in the anterior end of the animal.
A. concentrate nervous tissue in the anterior (head) end of the animal.
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