Answer:The answer is A
Explanation:I have had the question before
 
        
             
        
        
        
Answer:
It is habitat and then niche 
Explanation:
I just answered it 
 
        
                    
             
        
        
        
According to the angular size contrast theory of the ........
        
             
        
        
        
Answer:
Thylakoids
Explanation:
Thylakoids are usually arranged in stacks (grana) and contain the photosynthetic pigment (chlorophyll). The grana are connected to other stacks by simple membranes (lamellae) within the stroma, the fluid proteinaceous portion containing the enzymes essential for the photosynthetic dark reaction, or Calvin cycle.