Like average amphibians, with its naked skin of no protection by leather and fur, the tree frog is very sensitive to environment pollution by heavy metal, chemicals and acid rain.
英
美
释义
树蛙和一般两栖类一样,皮肤裸出,没有毛皮的保护,所以对生活环境中重金属、农药与酸雨等污染十分敏感。
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