Answer:
 Biotic community
Explanation:
Definition of biotic :living organisms in the ecosystem .Example Frog,fish,and etc.
Definition of Abiotic: Nonliving things in the ecosystem. Examples wind,water,and etc.
 
        
             
        
        
        
includes the brain and spinal cord
 
        
                    
             
        
        
        
I guess it science Oklahoma And ecosystem and protozoans Andrew And thanks
        
             
        
        
        
I don't know a lot about volcanos, but I can help you with the formatting
        
             
        
        
        
Answer:
The correct answer is (b) epinephrine.
Explanation:
Epinephrine, also known as <em>Adrenaline</em>, is a hormone secreted by the medulla of the adrenal glands.
In medicine, epinephrine is used as a stimulant in cardiac arrest, as a vasoconstrictor in shock and as a bronchodilator and antispasmodic in bronchial asthma.
When epinephrine is inhaled in small doses, it causes short-term relief from the symptoms by widening the bronchial tubes allowing air to pass through. 
I hope it helps!