Answer:
d and a
Explanation:
the central nervous system is the central obviously and the peripheral nervous system takes the information the CNS wants to send and send thm to the correct organ.
<span><span>Oxygen 0.65</span><span>6</span><span>1 Hydrogen 0.10</span><span>7</span></span>
Small Intestine, mainly Jejunum and Ileum
