They are composed of long chains of amino acids.
The building blocks of protein are amino acids. Amino acids are organic molecules made up an alpha (center) carbon atom which is linked to an amino group, a carboxyl group, a hydrogen atom and  a variable component  known as a side chain.
Amino acids are joined to each other by peptide bonds  to form either a short chain called an oligopeptide or  a long chain called a polypeptide.  These chains are what forms the protein.
 
        
             
        
        
        
Answer: 4 haploid (1 chromosome) cells at the end of meiosis. The original cell no longer exists.
Explanation: meiosis I produces 2 haploid cells, meiosis Ii duplicates those cells. The cell becomes 4 cells, each with 1 chromosome
 
        
             
        
        
        
Answer:
adhesion
Explanation:
The term used to describe the attraction of water molecules to other molecules is referred to as <u>adhesion</u>.
Generally, adhesion or adhesive forces is a term used to describe the force of attraction between molecules of different substances. This is as opposed to cohesion or cohesive forces which refers to the force of attraction between the molecules of the same substance. 
Hence, when molecules of water attract or stick to other molecules, the force at play is an adhesive force or simply adhesion.
 
        
             
        
        
        
Virtually any behavior can have sociological imagination<span> applied to it.</span>
        
                    
             
        
        
        
Pseudostratified columnar respiratory epithelium