Sphingolipids differ from phosphoglycerides because? A. sphingolipids never have the phosphodiester linkage found in phosphoglycerides. B. sphingolipids utilize sphingosine to replace the glycerol backbone and one of the two fatty acyl tail found in phosphoglycerides. C. sphingolipids are the only lipids in lipids rafts. D. sphingolipids never contain sugar groups.

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