faat~
please give me the ansers!
I must do the homework.
Why the sea animals need water?
2008-04-14 7:55 pm
回答 (1)
2008-04-14 8:11 pm
✔ 最佳答案
1. They breathe with gills. Water prevents the gills from being dehydrated.2. They are used to be supported by the buoyancy produced by the water. Although whales breathe with their lungs, they can breathe on land as their huge weight makes breathing very difficult.
收錄日期: 2021-04-13 15:26:07
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https://hk.answers.yahoo.com/question/index?qid=20080414000051KK00713