Question

which statement best describes a function of a membrane?
prevention of infection
separation of the thoracic and abdominal cavities
protection of the central nervous system
reduction of friction between neighboring organs

Explanation:

Serous membranes reduce friction between organs. They secrete serous fluid that lubricates the surfaces of organs, allowing them to move against each other without excessive friction. Prevention of infection is more related to immune - system barriers like skin and mucous membranes. Separation of the thoracic and abdominal cavities is the function of the diaphragm. Protection of the central nervous system is the role of meninges.

Answer:

Reduction of friction between neighboring organs