Question

name the ectoderm of sponge​

Answer 1

Answer:

As mentioned above, sponges are diploblasts and consist of essentially two cell layers. Between these two layers there is a gelatinous substance called the mesohyl. This matrix encases the sponge's skeletal elements as well as scattered amoebocytes.

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Answer 2

Answer:

Some of the ectoderm cells (orange) move inward forming the endoderm (red). Among animals, sponges show the simplest organization, having a single germ layer. Although they have differentiated cells (e.g. collar cells), they lack true tissue coordination.