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Select incorrect statement about mesenchyme:

Option: 1

Cellular and Gelatinous layer


Option: 2

Consists of spicules and amoeboid cells


Option: 3

Proteinaceous layer 


Option: 4

Present in body wall of sponges


Answers (1)

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The body wall of a sponge, specifically in the phylum Porifera, is composed of two layers. The outer layer is known as the pinacoderm, while the inner layer is called the choanoderm. These layers enclose a non-cellular mesenchyme, which is an interconnecting proteinaceous gelatinous matrix. The mesenchyme provides structural support and connects the two layers of the sponge's body wall. Hence, the correct answer is option 1. 

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