Answer: The carbon dioxide is the output and oxygen is the input of the Scuba apparatus.
Explanation:
The scuba apparatus is a life saving apparatus used by the sea divers. It recycles the exhaled gas and removes the carbon dioxide and compensates for the utilized oxygen gas before the diver is actually supplied with the gas for the purpose of breathing in a circuit. Hence, the carbon dioxide gas is the output and the oxygen is the input. 
 
        
             
        
        
        
Answer:
protista, bacteria. archaea, fungi.
Explanation:
 
        
             
        
        
        
Answer:
a.energy source ,either sunlight or chemicals
Explanation:
the animals using sunlight are known as photoautotrophs and the animals using chemicals are known as chemoautotrophs.
 
        
             
        
        
        
I believe the answer is commensalistic because it wouldnt be parasitic because the other isnt getting harm and its not mutual because both aren’t benefitting from it