Question

what are poriferans??​

Answer 1

Answer:

a phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation but with the body permeated by canals and chambers through which a current of water flows and passes in its course through one or more cavities lined with choanocytes.

Characteristic Features of Phylum Porifera

• They are generally marine aquatic organisms, with a few freshwater species.

• Their bodies are asymmetrical.

• Body shape can be cylindrical, vase-like, rounded or sac-like.

• They are diploblastic animals with two layers, the outer dermal layer and the inner gastral layer.

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Explanation:

Answer 2

Sponges, the members of the phylum Porifera, are a basal Metazoa clade as a sister of the Diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells.