Biradial symmetry and lack of cnidoblasts are | vedclass

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(C) : $Ctenophora$ is a small phylum of exclusively marine,invertebrate animals. $Ctenoplana$ and $Beroe$ are examples of $Ctenophora$. They exhibit b

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Ctenoplana and Beroe

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(C) : $Ctenophora$ is a small phylum of exclusively marine,invertebrate animals. $Ctenoplana$ and $Beroe$ are examples of $Ctenophora$. They exhibit biradial symmetry,which is a combination of radial and bilateral symmetries. They lack the specialized stinging cells known as cnidoblasts or nematocysts,which are characteristic of the phylum $Cnidaria$ (coelenterates). Although one species,$Haeckelia$ $rubra$,can incorporate stinging cells from its jellyfish prey for defense,it is not a general characteristic of the phylum.

Biradial symmetry and lack of cnidoblasts are the characteristics of

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