Ytho 420 Da Wae Omg Cholesterol
        
             
        
        
        
Answer:
I think it's A but I'm not completely sure
 
        
             
        
        
        
Space is filled with nothing. 
Space is the absence of matter.
Hope this helped
        
             
        
        
        
Answer:
decreases reabsorption of calcium by the kidneys
Explanation
from what ive found, calcitonin stops osteoclast activity, makes bones stronger, stimulates the sythesis of vitamin D, but does not (in anywhere i have read) decrease reabsorption in the kidneys. I really hope this helps.,,
if im wrong i am so sorry :(
 
        
             
        
        
        
The term "lipid" does not specify a particular chemical structure. Whereas one can write a general formula for an amino acid, nucleic acid, or protein, lipids are much more chemically diverse. Compounds are categorized as lipids based on their greater solubility in organic solvents than in water.