Which statement best describes the effect nicotine has on the central
nervous system?
C. It acts as both a stimulant and a sedative
Iherited defective genes, because its the closest to uncontrolled cell division and that can be inherited and its a defect.
<span>The best answer is :
Systolic circulation
</span>The systolic blood circulation is the process when the heart contracts., the oxygen-rich blood from the heart is pumped out into the arteries, from where it is sent to all the body parts.
<span>The node which initiates the contraction through a nerve signal is called the AV node.</span>
Yooooooooooo answer : yoooooooooooo