The Choanocyte Cells from Phylum Porifera, Nematocysts Cells from Phylun Cnidaria and Colloblast Cells from Ctenophora like Analogues Structures

Authors: Zamponi MO

DOI: 10.23880/izab-16000614

Volume 7, Issue 5

Abstract

There are three basic structures belongs to Phylum Porifera, Phylum Cnidaria and Phylum Ctenophora very important because they have similar function like to catch food, but three of them have different origin and different structuration too. They are knowing like choanocyte (Porifera), nematocysts (Cnidaria) and colloblast (Ctenophora) so they are considered analogue structures and they have different positions in the animal; meanwhile the first one are localized in the general cavity (asconoid form, leuconoid form) of sponge, the second one are localized in different zones of the animal like tentacles, acontium , verrucae , vesicule, acrorargus and the last one is on tentacles.

Keywords: Analogue Structures-Choanocyte (Phylum Porifera); Nematocysts (Phylum Cnidaria); Colloblast (Phylum Ctenohora)

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