Answer:
Warm fronts and high pressure systems
Explanation:
<span>The sympathetic division of the Autonomic Nervous System. The ganglia and synapses within that division are responsible for delivering information to the body regarding stress and impending danger. This is more commonly known as the fight-or-flight response.</span>
Gravity and friction keeps people on the skateboard
A) amino acids which is protein will make the organic molecules repair and grow. And nucleic acids will transfer the dna. Without either of those two an organism cannot grow.