the skeletal and muscular system.
Natural barriers include the skin, mucous membranes, tears, earwax, mucus, and stomach acid.
Answer:
be
Explanation:
because the materials used is more power than each other
Answer:
The correct answer is Alarm Reaction or Alarm Stage.
Explanation:
Alarm stage is also called as a fight and flight stage. During this stage, our brain sends signals to all the parts of the body and informs the body that some emergency situation has arised.
Due to this emergency situation, our heart starts beating faster which in turn sends more blood to the various parts of the body, adrenals glands enhances the release of stress hormone called cortisol and our body receives a kick of adrenaline rush which in turn boosts energy.
