The right answer is a. they contain many small, repeating subunits bonded together.
In chemistry and biology, a polymer is a molecule made up of a chain of similar molecules, called monomers; a polymer is a macromolecule resulting from the assembly of many identical units (monomers), a chemical compound with repetitive structural units.
DNA, glycogen and proteins are polymers
Try, Dinosaurs, birds. fish, reptiles. amphibians.
They have an adaptation called trigger hairs.
The answer is c because of science