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Eduardwww [97]
3 years ago
11

The phyla porifera, cnidaria, and ctenophora are ________.

Biology
2 answers:
harina [27]3 years ago
8 0
<span>The most ancient of all animal lineages.</span>
Rainbow [258]3 years ago
7 0
Diploblastic organisms <em>Diblastica</em> - they do not have mesoderm or coeloma. 
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