The outer ear consists of two things and they are the auricle and the ear canal , which is also called the auditory canal. 
The auditory canal  goes from the outer ear to the middle ear. 
The auricle is what we see of the ear...the physical part of the ear. It can be called the pinna as well.
I hoped that this helped and good luck.
        
                    
             
        
        
        
Answer:
The yellow leaf was not exposed to the sun so it can't produce sugar.
Explanation:
The yellow region of the leaf didn't produce sugar because it wasn't exposed to sunlight. Part of the leaf was exposed to the sun, thus this leaf produced sugar, while the yellow part of the leaf did not because it was not exposed to the sunlight.
 
        
             
        
        
        
Celluar respiration is the process of turning chemical energy into forms usable by the cell or organism.