Answer:
A.
Explanation:
Duncan James Watts is a sociologist that was born on February 20, 1971 in Guelph, Canada and became principal researcher at Microsoft Research. To investigate how some pop songs become hits, Watts manipulated songs' ratings and download numbers to observe the effects on songs' popularity. By doing so he analyzed if the manipulated ratings caused the songs popularity to go up or down.
<em>Answer:</em>
<em>a. motor neurons; peripheral nervous system </em>
<em>Explanation:</em>
<em>Motor neurons:</em><em> It is also referred as "motoneuron" and is described as a neuron whose "cell body" is generally located in the "motor cortex", "spinal cord", and the "brainstem" and its axon or fibers are projected towards an individual's spinal cord and outside his or her spinal cord in order to control glands, muscles, and effector organs directly and indirectly.</em>
<em>Peripheral nervous system:</em><em> It is considered as including every different nerve in an individual's body that is located outside his or her brain and the spinal cord. The mentioned nerves carry specific information from and to the "central nervous system" and therefore provides various complex "body functions".</em>
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<u>Correct:
</u>
The Senate is made up of 30 members.
All members can introduce legislation.
Members are elected by Arizona’s citizens.
<u>Incorrect:
</u>
The House is made up of 30 members: The Arizona House of Representatives (lower house) is made up of 60 members. Each one of Arizona’s 30 legislative districts elects two representatives for the House.
The House has 16 standing committees: The Arizona House has 17 standing committees.