Answer: White blood cell 
Explanation:
White blood cells also known as leucocytes are the cell type that include lymphocytes, neutrophils, basophils, eosinophils and monocytes. All the classes of white blood cells play vital role in immune response.
Thus, White blood cell is the answer 
 
        
                    
             
        
        
        
A concept that ypu try to proveYour welcome is the correct spelling
        
             
        
        
        
Answer: The density, ρ, of an object is defined as the ratio of its mass to its volume. ... Mass and volume are extensive (or extrinsic) properties of matter - they ... In this experiment, you will measure masses and volumes to determine density.
Explanation:
 
        
             
        
        
        
Trilobites are found worldwide and evolved rapidly, making them easily distinguishable from trilobites of other time periods
 
        
             
        
        
        
Answer:
carbohydrates- store energy and provide support and help in mating the energy sorted in the body
lipids- surround and protect cells, regulate cell fucntions and the body and the organism.