This would be considered the synaptic cleft
 
        
             
        
        
        
Answer:
Renewable resources can be replenished, such as water. Non-renewable resources are limited, like oil. A sustainable option is one that can be reused without affecting the environment.
Explanation:
 
        
             
        
        
        
Atria is a large part of the heart so too big for cells; arteries & veins lead away or to the heart. 
Capillaries are the smallest vascular structures that allow materials to be exchanged easily between cells.
        
                    
             
        
        
        
C because biomimicry is the design and production of materials, structures, and systems that are modeled on biological entities and processes. Also the root word “mimic” like “fake” can be used to understand this