why does our nose get stuffy when we have a cold
Answer:
Due to dilation of blood vessels in the sinuses of the nose
Explanation:
Often times, we think our nose gets stuffed up due to the excess mucus in times of cold but it is not always so. 
We get stuffed due to the body's homeostasis, a drive to internally control and balance the outside environment. 
- During cold, blood vessels dilate so as to allow for more inflow of blood. 
- Incoming blood brings in more heat to the body parts. 
 
        
             
        
        
        
Answer is C
This is because all insect's are exo skeleton which means they body is hard 
 
        
                    
             
        
        
        
Answer: The sun generates energy from a process called nuclear fusion.
Explanation: I hopes this helps you out.
 
        
             
        
        
        
Chlorphyll is not any of the listed biomolecules, but it is most closely related to carbohydrates as it contains Carbon, Hydrogen, and Oxygen. Chlorophyll is actually a pigment that absorbs light