Science, asked by subhadcruz, 1 year ago

why is colenterata called cyndisis

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Answered by ani34
0
colenterata is term encompassing animal phyla , the cmirdic (coral animals ,sea pens and other allies) ctenophora was first considered a sub- group but hyman regarded ctenophora a separate phylum. they have very simple tissue organisation , with only two layers of cells ( external cell ,internal cell ).
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