This type of system does not interact with the environment around it. It recycles all of the mass on its own. A. No system
B. Open system
C. Isolated system
D. Closed system

C. Isolated system

Explanation:

The question above is related to the the topic, "Thermodynamics."

Thermodynamics refers to how energy is being transferred among molecules. This study focuses on the "system" and the "surroundings/environment"

There are actually three types of systems (open, closed and isolated). When it comes to "isolated system," such system doesn't interact with the surroundings. This means that, it is incapable of exchanging energy or matter with its environment. This means that neither mass nor energy will be able to enter it; thus, it recycles all of the mass on its own.

answer; (phospholipid);

c. establishing proper sleep hygiene