1412. What character can be added to both of these characters to give other characters? 苗_ -> _兆

Answer:

苗  BYOU, nae, nawa - seedling, sapling

兆  CHOU, kiza(shi), kiza(su) - sign, indication, symptom, sprout

Add 木:苗+木 木+兆 

木  MOKU, BOKU, ki - tree

菓  KA - cake, fruit

桃  TOU, momo - peach