The Aswer Is Susan B. Anthony.
A complementary good<span> or </span>complement<span> is a </span>good<span> with a negative cross flexibility of demand, in opposite to a substitute </span>good<span>. </span>
Juan knows that turning the pages of a book, using his pen to take notes, or raising his hand is all possible due to his somatic nervous system.
<h3>What is the nervous system?</h3>
It is a very intricate component of an animal that communicates messages to and from many sections of its body to coordinate its movements and sensory data.
As we know,
The somatic nervous system is a part of the peripheral nervous system that is involved in the voluntary regulation of skeletal muscle movement.
Thus, Juan knows that turning the pages of a book, using his pen to take notes, or raising his hand is all possible due to his somatic nervous system.
Learn more about the nervous system here:
brainly.com/question/3239081
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