Complete the following sentence: Polymers are large molecules built up from smaller units called ______ ; Your answer here;

Polymers are large molecules built up from smaller units called monomers. Monomers are the basic building blocks that link together through chemical reactions to form a polymer. This process of linking monomers is called polymerization. For example, in the case of plastics, the monomer ethylene (C₂H₄) can polymerize to form polyethylene, which is commonly used in plastic bags. The properties of polymers can vary widely depending on the types of monomers used and the arrangement of these monomers in the polymer chain. This versatility makes polymers essential in various applications, from everyday products like clothing and containers to specialized materials used in medical and technological devices.