Complex sentence: Chlorophyll "c" is unusual because it does not have an isoprenoid tail or a reduced ring D, features typical of the other chlorophylls commonly found in algae and plants.
Split into simpler sentences: Chlorophyll "c" is unusual because it does not have an isoprenoid tail, and ring D is not reduced. These features are typical of the other chlorophylls commonly found in algae and plants.