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The term actinomorphy is generally used to describe radial symmetry in flowers.
常用“辐射对称”描述辐射状的花。
Except Ctenoimbricata didn't have radial symmetry.
除了 Ctenoimbricata 没有径向对称性。
But why five-part radial symmetry, specifically?
但具体为什么是五部分径向对称呢?
So how did the ancient ancestors of starfish go from having bilateral symmetry to having radial symmetry?
那么海星的远古祖先是如何从左右对称变成径向对称的呢?
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