B. is the answer because the nervous system send nerves down your body telling your hand to move its a reaction to the pain of the hotness your felling
<span>The answer is : Both have true necks, while eusthenopteron has no neck. </span>We know that tiktaalik is more closely related to acanthostega than it is Ichthyostega eusthenopteron because Tiktaalik and Acanthostega both have true necks while eusthenopteron has none.
It depends on the weight of the sediments.