Main Answer:
Polymers are chemical compounds, not botanicals. They're formed by repeating small molecules, distinct from the assertion about botanical origin. B) they are chemical compounds.
Therefore, the correct answer is B) they are chemical compounds.
Explanation:
Polymers are chemical compounds composed of repeated structural units, but it is not true that they are botanicals. Botanicals typically refer to substances derived from plants, and polymers, although they can be derived from natural sources, are not exclusively botanical. Polymers are large molecules formed by the repetition of small, identical molecules known as monomers.
These monomers undergo a process called polymerization, linking together to create long chains or networks. This characteristic structure imparts unique properties to polymers, making them versatile materials with applications ranging from plastics to biological macromolecules.
Moreover, polymers do not release substances at a microscopically controlled rate. While certain polymers can be engineered for controlled release, not all polymers exhibit this property inherently. The controlled release of substances is a specific design consideration that involves tailoring the polymer's structure and properties, and it is not a universal trait of all polymers.
In summary, the statement that polymers are botanicals is not true. Polymers are indeed chemical compounds formed by the repetition of small molecules, and their properties, including controlled release, depend on specific design considerations.
Therefore, the correct answer is B) they are chemical compounds.