3
Question
The organisms having mesoglea lack________
The organisms having mesoglea lack________
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Solution
The correct option is D Nervous system
Mesoglea is the translucent, non-living, jelly-like substance found between the ectoderm and endoderm in the bodies of sponges, cnidarians and coelenterates. These are diploblastic animals. Sponges do not show a presence of any tissues but coelenterates show a presence of simple tissue. But these are simple and lower grade animals compared to other larger animals. They do not show a presence of a well organised nervous system.
Nervous system
Mesoglea is the translucent, non-living, jelly-like substance found between the ectoderm and endoderm in the bodies of sponges, cnidarians and coelenterates. These are diploblastic animals. Sponges do not show a presence of any tissues but coelenterates show a presence of simple tissue. But these are simple and lower grade animals compared to other larger animals. They do not show a presence of a well organised nervous system.
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