首页 >  Term: уста
уста

Front opening of the digestive tract, into which food is taken for digestion. In flatworms, the mouth is the only opening into the digestive cavity, and is located on the "belly" of the worm.

0 0

创建者

  • PanchoVilla
  • (Smederevska Palanka, Serbia)

  •  (V.I.P) 10022 分数
  • 100% positive feedback
© 2024 CSOFT International, Ltd.