Two cell layers ( diploblastic ) separated by a gelatinous mesoglea.两层细胞 ( 两胚层 ),中间是凝胶状的中胶层.The outer layer a diploblastic animal, such as a jellyfish.外层双胚层动物的外层, 如海蜇....
摘要后现代主义对儒学表现出亲和的态度.Postmodernism expressed an intimate attitude towards Confucianism.许多植物是雌雄同体的, 但它们存在自交不亲和的机制,从而促进异花受精.Most plants are hermaphrodite, but have mechanisms such as self - INCOMPATIBILITY that promote allog...