Complex sentence: Apoptosis is necessary for the proper spacing and sculpting of complex organs.a round 20% of cells "D. discoideum" alturistically sacrifice themsleves in the formation of the mature fruiting body.
Split into simpler sentences: Apoptosis is necessary for the proper spacing and sculpting of complex organs. Around 20% of cells in "D. discoideum" alturistically sacrifice themsleves in the formation of the mature fruiting body.