Unity and Diversity A.1 Water (id: 48bf30cf2)

本题目来源于试卷: Unity and Diversity A.1 Water，类别为 IB生物学

[问答题]
The image shows a ringed seal (99z:wk;40c 7rd 3j gm;fog2wsdyuj boPusa hispida) that lives in tht+iqp),sie gwzl 2 x ve:/23hde Arctic Sea.


1.Distinguish between the physical properties of air and water that allow the seal to mostly live in the sea.
2.Ringed seals glide into the water head first from ice shelves, rather like humans diving into a pool head first. Explain the advantage of entering the water in this way rather than ‘belly-flopping’ into the water.

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