The evolutionary step that freed these animals from the water was the development of the amniote egg.
使这些动物得以脱离水生活进化步骤是羊膜卵得改进。
The evolutionary step that freed these animals from the water was the development of the amniote egg.
使这些动物得以脱离水生活进化步骤是羊膜卵得改进。
Campana chuckled. “Hey, you'd better cool down, Anthony --- you're getting to be a real party animal!”
坎帕纳吃吃地笑。“嗨,冷静下来,安东尼——
快变成一个真正喜
结群生活
动物了!”
The results showed that there were most abundant argyrophil cells distributed in duodenum, less in large intestine and least in jejunum and ileum.
作者认为嗜银细胞型与动物
生活环境是相关
。
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