Honey
Nectar
ミツ
None
蜂 (ホウ、はち) Bee
蜜 (ミツ) Honey, Nectar
必 (ヒツ、かなら) Certain
秘 (ヒ、ひ) Secret
泌 (ヒ, ヒツ) Secrete
密 (ミツ、ひそ) Secrecy
蜜 can mean Honey or Nectar.
The 必 radical probably comes from secrete 泌 or secrecy 密 since Honey 蜜 is a secretion stored in secrecy in the hive.