Completely resorbable, bioreactive and bioinert are classifications of what?Question 4Select one:PolymersCeramicsCobalt alloysNanomaterials

These classifications - completely resorbable, bioreactive, and bioinert - are typically used for biomaterials. Biomaterials are often used in medical applications, and can be made from various substances.

1. Polymers: These are large molecules made up of repeating subunits. They can be designed to be either resorbable or non-resorbable, depending on the application.

2. Ceramics: These are hard, brittle materials that are typically bioinert. They are often used in orthopedic implants due to their high wear resistance.

3. Cobalt alloys: These are metallic materials that are typically bioinert. They are often used in applications where high strength and corrosion resistance are required, such as in dental implants or hip replacements.

4. Nanomaterials: These are materials with structures that are less than 100 nanometers in size. They can be made from a variety of substances, including polymers, ceramics, and metals. Their properties can be tailored to be resorbable, bioinert, or bioreactive, depending on the application.

So, the answer to your question is that all of these - polymers, ceramics, cobalt alloys, and nanomaterials - can be classified as completely resorbable, bioreactive, or bioinert, depending on how they are designed and what they are used for.