Answer:
I hope this is something like what you're looking for
 
        
             
        
        
        
The first colorimeter is precise, but it is not accurate. It seems to have a zero error of -5.
We can conclude its precision because the readings are closely grouped, but its lack of accuracy is due to its variation from the actual value. Moreover, the variation is consistently of 5 points lower than the actual value, so its zero error may be -5.
The second colorimeter may be referred to as being accurate.
        
                    
             
        
        
        
I believe that 2 is correct. :)
        
             
        
        
        
Answer:
The answer is Small intestine
Hope this helps
 
        
             
        
        
        
Answer:
Ok, I am going to try my best to label all of this. It is quite a vague drawing, isn't it? lol, lets see:
A - Lysosome 
B - Endoplasmic Reticulum 
C - Golgi Bodies? 
D - Cell Membrane 
E - Nucleus 
F - Ribosomes 
G - Cytoplasm 
H - Mitochondria 
Thank you very much! If you need any more help or such, make sure to comment, and I'll try to help some more. Thank you!