Question

Why is mesoglea not considered as a definite layer?

• A. It has no jell
• B. Its cells are not arranged in epithelial layer
• C. It is solid-like
• D. It is not derived from mesoderm

Answer 1

Answer: (B)

Its cells are not arranged in epithelial layer

Mesoglea is a jelly-like substance. This is also commonly known as the mesohyl. This layer is found between the two epithelial cell layers. The layer is located between the endoderm and ectoderm. This form of body construction is found in sponges. The mesoglea contains small cells which are not arranged as a compact layer. There are amoeba like structures which are scattered in the jelly like matrix. The layer is mostly composed of water. This is the reason it is not considered as a definite layer.

Thus, the correct answer is option B.