How are natural polymers and synthetic polymers similar? a) both are made up of phosphates and organic bases b) both serve important roles in producing amino acids c) both are made up of monomers that are linked by covalent bonds

C) Both are made up of monomers that are linked by covalent bonds

Explanation: Polymers are large molecules which are formed by combination of small repeating units called as monomers.

Natural polymers are found in nature such as cellulose whereas synthetic polymers are synthesized in laboratories such as Nylon 6,6.

All the polymers, whether natural or synthetic are made up of monomers and are joined by covalent bonds.

the answer is:  

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