Answer: conditioned 
Bobby touches his newborn brother's palm, and his little brother takes hold of Bobby's finger and will not let go. This is known as the conditioned reflex.
Explanation:
A conditioned reflex is a response or behaviour learned after birth. So, once the newborn acquires this learned response, they can perform them even without thinking about it. 
Thus, Bobby's brother (the newborn) holding on to his finger and not letting go shows that it is a conditioned reflex
 
        
             
        
        
        
I think the answer would be A because the fish does look like a plant
        
             
        
        
        
So it could fit perfectly.
        
             
        
        
        
Traits are inherited trough the parents genes that are passed to the offspring trough both parents reproductive cells, that contain genes in their nucleus.
Hope it helped,
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