Answer:
The pierce ears on a person will not be passed on to there children however children often look like their parents why might this be so?
Piercing of ears is not an inheritable character rather it is an environmental character that is influenced by the environment rather not controlled by the gene
Explanation:
 
        
             
        
        
        
Answer D because humans can effect the way of life in an ecosystem and things like climate can effect them too
        
             
        
        
        
I would say C.nervous system because that pretty much defines all of the answer choices. 
        
             
        
        
        
Answer:
the dependant is the water the independant is the mass i think
Explanation: