[[Endoplasmic reticulum|ER]] that has no [[ribosomes]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia
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'''Smooth endoplasmic reticulum''' is [[Endoplasmic reticulum|ER]] that has no [[ribosomes]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia