The fluid mosaic model describes the structure of the cell membrane. to what does fluid portion of the model refer? to what does the mosaic portion refer ?

fluid part refers to the phospholipids of a cell membrane

mosaic part refers to proteins embedded in the phospholipid bilayer

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answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]