▁The ▁nuc lei ▁divide ▁twice ▁giving ▁rise ▁to ▁a ▁large ▁ha p lo id ▁and ▁known ▁as ▁is og am etes . ▁ ▁Is og am etes ▁of ▁two ▁different ▁individuals ▁f use ▁in ▁pairs ▁to ▁form ▁z yg otes . ▁These ▁are ▁then ▁develop s ▁into ▁mic ros pher ic ▁form . ▁The ▁life ▁cycle ▁of ▁El ph id ium ▁may ▁be ▁summar ized ▁as ▁follows : ▁the ▁mic ros pher ic ▁forms ▁produce ▁am o eb ula e ▁by ▁a sex ual ▁f ission ▁which ▁develop s ▁into ▁meg al os pher ic ▁forms . ▁The ▁meg al os pher ic ▁forms ▁produce ▁flag ell ated ▁is og am etes ▁which ▁after ▁sy ng amy ▁produce ▁z yg otes ▁that ▁develop ▁into ▁mic ros pher ic ▁forms . ▁Thus , ▁its ▁life ▁cycle ▁clearly ▁exhib its ▁the ▁phenomen on ▁of ▁altern ations ▁of ▁a sex ual ▁mic ros pher ic ▁gener ations ▁with ▁sexual ▁meg al os pher ic ▁gener ations . ▁ ▁References ▁▁▁ ▁Lo eb lich ▁and ▁Helen ▁T app an , ▁ 1 9 6 4 . ▁S arc od ina ▁Chief ly ▁" The c amo eb ians " ▁and ▁For amin ifer ida ; ▁Tre at ise ▁on ▁In verte br ate ▁Pale ont ology , ▁Part ▁C ▁Pro t ista ▁ 2 . ▁Ge ological ▁Society ▁of ▁America ▁and ▁University ▁of ▁Kansas ▁Press . ▁▁▁ ▁_ ____ ▁ 1 9 8 8 . ▁Form in ifer al ▁Gener a ▁and ▁their ▁Classification . ▁E -