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How many tissue layers does a sponge have?

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As mentioned above, the sponge is the ectoderm, which is essentially composed of two cell layers. Between these two layers is a gelatinous substance called mesohyl. This matrix encloses the skeletal elements of the sponge and the scattered amebic cells. 11th. 2015 г.



Does the sponge have a panniculus?

Sponges (except Hexactinellid) do not show the organization of the panniculus, but have different cell types that perform different functions. Pinacosite, an epithelial-like cell, forms the outermost layer of the sponge and surrounds a jelly-like substance called mesohyl.

How many germ layers does the sponge have?

The sponge is the ectoderm and originates from two basic germ layers, the ectoderm (outer layer) and the endoderm (inner layer). Most sponges are asymmetric.

What are the three layers of sponge?

The body wall is composed of three layers: the outer layer of flat epidermal cells. An intermediate layer consisting of gelatinous substances and amoebic cells that move within the layer. Inner layer consisting of flagellar cells and choanocytes (also called choanocytes)

How many tissue layers does a sponge have?

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